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Apollo 16

Day 10 Part One - Preparation for EVA

Corrected Transcript and Commentary Copyright 2008 David Woods and Tim Brandt. All rights reserved.

Wakeup Call 212:44
Return to Earth's Sphere of Influence 212:52
Day 9 Crew Status Report 213:10
MCC-5 Pad 213:53
MCC-5 214:33
SIM Bay Inspection Requirements

214:42
Comm Problems 215:04
Start Suit Donning 216:44
Suit Donning Completed 217:14
Start Cabin Depressurisation 218:37
End of Chapter 218 46

Public Affairs Officer: This is Apollo Control, Houston, at 237 hours, 29 minutes [212:43] Ground Elapsed Time. We now show Apollo 16 at a distance of 187,791 nautical miles away from the Earth. And now travelling at a speed of 3,750 feet per second relative to the Earth. In the Mission Control Center we've had a change of shift. Our Flight Director at this time is Phil Shaffer and filling the Capcom position at this time Henry Hartsfield. We'll stand by now with the line open awaiting for a crew callup. We're at 237 hours, 30 minutes [212:44:] Ground Elapsed Time and this is Apollo Control, Houston, continuing to monitor.

[The PAO, Mission Control and Crew are using the updated GET, intended to align events to the Flight Plan. At this stage in the flight, the difference from the actual GET is 24 hours, 45 minutes and 52 seconds. See here for more details.]

212 44 37 Hartsfield: Apollo 16, Houston.

212 45 09 Mattingly: Good morning, Henry.

212 45 10 Hartsfield: Good morning. Is everybody wide awake and feeling great this morning?

212 45 19 Mattingly: You even gave us an extra hour.

212 45 35 Hartsfield: We're coming up on antenna switch, and I think the comm is a little bad; but, right off the bat we'd like for you to remain in PTC.

212 45 47 Mattingly: Okay.

212 45 50 Hartsfield: And we'd also like for you to take the Up Telemetry Command switch Off for three seconds. We've got that same commanding problem we had during coast out to the Moon.

212 46 14 Mattingly: Okay. It's Off and back to Normal.

212 46 17 Hartsfield: Roger.

212 46 45 Hartsfield: That cured up the commanding problem.

212 46 52 Mattingly: Good show.

212 47 12 Mattingly: Hank, before we copy the Flight Plan updates, do you want us to start on the 236-hour item?

212 47 22 Hartsfield: Roger. We'd like for you to get started on the postsleep checklist. And, rather than read you a bunch of things to start with, I think I'll just remind you of a few things to catch you up. I've got a list of them here. While you're doing that, if we could get somebody to pull the Gamma Ray boom in, I'd appreciate it.

212 47 41 Mattingly: Okay. You want that all the way in?

212 47 51 Hartsfield: That's affirmative. And you'll need your Logic Powers to get that in.

212 47 53 Mattingly: All righty. Thank you, sir.

212 48 12 Hartsfield: And we'd like to get the S-Band Normal Mode switch to Voice.

212 48 24 Mattingly: That already is voicing.

212 48 27 Hartsfield: Okay.

212 48 32 Duke: We couldn't talk to you if we weren't in Voice, Pete.

212 48 40 Hartsfield: Roger. We were in Down Voice Backup there and then Command in Normal.

212 48 50 Mattingly: I got you.

212 49 23 Hartsfield: And, Ken, for your information, we've scrubbed the corona window calibration and the Skylab contamination photos.

212 49 33 Mattingly: Okay.

212 49 35 Hartsfield: And we're gonna stay at PTC right up to the Mid-Course 5. And if you're - can get to it now, Ken, I'd like to get the Image Motion, On; and the Mapping Camera, On. And, then give me barber pole plus two.

212 49 58 Mattingly: Okay. Just a second. Let me catch up here.

212 50 46 Mattingly: Hank, you say you want the Mapping Camera Image Motion, On; and then the cameras on (garble).

212 50 57 Hartsfield: That's affirmative, Ken. We want to get the Image Motion, On; the Mapping Camera, On; barber pole plus two. And we're gonna leave it shut up in there. We're just running the film out.

Public Affairs Officer: This is Apollo Control, Houston, at 237 hours, 37 minutes [212:50] Ground Elapsed Time. The crew of Apollo 16 [have been] given some extra sleep time this morning. Two of the earlier items scheduled have been deleted from the Flight Plan, the corona calibration photography and the Skylab contamination photography.

[CM transcript starts.]

212 51 23 Young (onboard): Yes, sir.

212 51 25 Mattingly (onboard): Thank you.

212 51 35 Young (onboard): I really slept good last night. Really did.

212 51 37 Mattingly (onboard): Boy, I did. (Laughter)

212 52 03 Duke (onboard): (Garble).

212 52 05 Young (onboard): By the time we get ready, we - we've got to go back and land. Of all the dumb things (laughter).

212 52 11 Mattingly (onboard): That's about right.

212 52 25 Mattingly (onboard): Hey, how about hitting the Gamma Ray, Shield Off, once you're in? Let's see, I guess we aren't in yet, though.

212 52 38 Young (onboard): It's in work.

212 52 39 Mattingly (onboard): Okay.

Public Affairs Officer: We're at 237 hours 38 minutes [212:51] Ground Elapsed Time. We show Apollo 16 at a distance of 187,462 nautical miles away from the Earth and travelling at a speed of 3,755 feet per second relative to the Earth.

212 52 42 Hartsfield: Apollo 16, Houston.

212 52 47 Mattingly: Hello.

212 52 48 Hartsfield: Roger. For your information, old mother Earth's got you now, and you're coming home.

212 52 58 Mattingly: That's nice to know ...

212 53 00 Young: Hey, Hank it had us ...

212 53 01 Mattingly: How about some words...

212 53 02 Young: ... last night.

212 53 04 Hartsfield: Roger. We're just now showing you crossing under the Earth's in - sphere of influence.

Public Affairs Officer: That was Capcom Henry Hartsfield advising the crew of Apollo 16 that they're now in the Earth's sphere of influence.

212 53 09 Mattingly: What's some words on Mid-Course 5.

212 53 10 Hartsfield: Roger. Mid-Course 5 will be about 4 feet per second. It'll be an RCS burn.

212 53 24 Mattingly: Roger

Public Affairs Officer: We show 1 hour 41 minutes till time of the Mid-Course burn. This with the Delta V of about 4 foot per second performed with a [sic] Reaction Control System. We're looking presently at a burn duration of 8 to 9 seconds.

Public Affairs Officer: We now show Apollo 16 187,381 nautical miles away from the Earth.

212 54 39 Mattingly (onboard): Did we - we didn't turn the Mapping Camera On, did we?

212 54 41 Young (onboard): No. You want that turned on?

212 54 43 Mattingly (onboard): Just a second, let me find it here. It's presently Off, right?

212 54 51 Young (onboard): Yeah.

212 54 52 Mattingly (onboard): There's a place in here where it says turn it Off, and then some place it says turn it On.

212 54 56 Young (onboard): Well, that's just something - maybe you could clear it up.

212 54 58 Mattingly (onboard): No, I found something in the Flight Plan where I turn it Off.

212 55 06 Mattingly: Hank, would you say again what you wanted done with this Mapping Camera, please?

212 55 09 Hartsfield: Roger, Ken. We just want to run the film out and leave the door shut. We want to get the Image Motion, On; Mapping Camera, On; and barber pole plus 2. That gives us a higher speed.

212 55 23 Mattingly: Okay.

212 55 24 Mattingly (onboard): We'll leave this in the center position, then, Okay; the Mapping Camera, On; top switch.

212 55 33 Young (onboard): On.

212 55 32 Mattingly (onboard): Yes.

212 55 36 Young (onboard): I should move the switch and all of a sudden it went barber pole ...

212 55 38 Mattingly (onboard): It's looking great. The Image Motion did that.

212 55 41 Young (onboard): Okay; and we go to On.

212 55 23 Mattingly (onboard): Okay. Now, take the switch below - this one. It's momentary. Get it up until you get barber pole.

212 55 56 Young (onboard): There you go.

212 55 57 Mattingly (onboard): Okay; now two more.

212 55 58 Young (onboard): One, two.

212 56 00 Mattingly (onboard): Okay.

212 56 18 Hartsfield: And, 16, Houston. Whenever you get a chance, we'd like to get yesterday's crew status and today's crew status report.

212 56 26 Mattingly: Okay. That's in work now, Hank.

212 56 3h Young (onboard): I tell you, let's tell them this about PRDs: we'd like to put that off until we can (garble) up to date (Garble) stand there (Garble) PRD (Garble) Sure it's down there, Charlie?

212 56 50 Duke (onboard): (Garble).

212 56 57 Young (onboard): Okay (garble). Just reading (garble).

TIME SKIP

213 00 15 Mattingly (onboard): You remember reading about that (garble)?

213 00 19 Duke (onboard): Yeah.

213 00 21 Mattingly (onboard): These were not on board.

213 00 25 Young (onboard): Well, I wouldn't worry about it.

213 00 29 Duke (onboard): (Garble).

213 00 39 Young (onboard): That's where I hid a (garble), wasn't it? Yeah.

213 00 50 Young (onboard): (Garble).

213 00 57 Mattingly (onboard): Gingerbread?

213 01 02 Young (onboard): (Garble).

213 01 11 Duke (onboard): (Garble).

213 01 14 Mattingly (onboard): Yeah, I guess we better. How about if I get a P52 in there before you pull up that Boyd?

213 01 21 Young (onboard): (Garble).

213 01 22 Mattingly (onboard): No.

213 01 24 Young (onboard): (Garble).

213 01 26 Mattingly (onboard): I can't believe how well it (garble). Man, I must have gotten 7 hours of sleep. I can't believe it.

213 01 48 Young (onboard): (Garble).

213 01 55 Duke (onboard): (Garble) on there a while.

[Break in CM transcript until 213:11:06.]

213 02 51 Hartsfield: Apollo 16, Houston. When you get a break there, I do have a few Flight Plan changes I'd like to get up.

213 02 57 Mattingly: Okay, Hank. Let me finish this status report thing. It all uses the same book.

213 03 03 Hartsfield: Okay.

213 03 40 Hartsfield: Ken, we need the Gamma Ray Boom switch Off. It didn't quite make it all in. The motor's still running. It's to a safe position.

213 03 44 Mattingly: Okay, thank you. Thank you, sir.

213 09 32 Hartsfield: 16, Houston. We'd like to verify that you heard my transmission on holding PTC to Mid-Course 5.

213 09 42 Young: that's affirmative. Hold PTC until Mid-Course 5.

213 09 49 Hartsfield: Roger, and for planning purposes, we'd like to get a P52 in sometime in the next 25 minutes.

213 10 02 Young: Well, for work purposes, Ken is putting up the optics now.

213 10 08 Hartsfield: Outstanding.

213 10 25 Young: Okay. Here's the crew status report, starting with the - A - item A-1 for the Commander. Skip the PRD. It's in the pressure suit, which is in the bag, and it's down - and it's very dusty, and I'd like to wait until we get ready to suit up for the EVA and I'll read you the PRD then.

213 11 02 Hartsfield: Okay, John.

213 11 03 Young: A-3: Day 8, 7 hour - 7 hours, good sleep, nope. A-4: none. Day 9: still skip the PRD reading for the same reason; 6-3/4 hours, good sleep. A-4: none. On the CMP, Day 8: B-1, 15059. B-3: 5.5, good sleep. B-4: none. Day 9: B-l, 1564. B-3: 7 hours, good sleep. B-4: none. On the LMP, day 8: skip the PRD, and suit was out of the way then. C-3: 7 hours, good sleep. C-4: none. And, Charlie remembered to get his PRD reading - reading machine out today, and C-1 is 21143. C-3: 7 hours, good sleep, C-4: none.

213 13 10 Mattingly (onboard): Did you have comm there at all? It sounds like you lost him.

213 13 16 Young: Did we lose you doing any of that, Hank?

213 13 20 Hartsfield: Negative, John. We got it all.

213 13 25 Young: Okay. Now, on to the menu. When we got back to the - to good old Casper here - We're working on Day 8, meal C. And for the Cdr, substitute a hamburger for beef gravy, and scratch the gingerbread. And for day 9, Meal A: scratch the peaches and the grits. Day 9, Meal B: scratch the hamburger and add meatballs with sauce. For day 9, Meal C: scratch the pecans. And, for the CMP -

213 13 46 Young (onboard): What did you eat on A-1 and B what - A and B?

213 15 00 Mattingly (onboard): Huh?

213 15 01 Young (onboard): Did you eat anything on A and B? The first 2 days in that thing?

213 15 05 Mattingly (onboard): Shoot, I don't remember.

[Break in CM transcript until 213:38:32.]

213 15 54 Young: Okay. For the LMP, with all of Day 8, scratch the mixed fruit, the ham steak, the white bread with jelly. On meal B: scratch the pea soup, the meatballs, the pork, and escalloped potatoes. Meal C: scratch the chocolate bar and a gingerbread and add pi - pineapple and a hamburger. On Day 9; scratch the peaches, the scrambled eggs, and the bacon squares on meal A. On Meal B: scratch the hamburger and white bread, the instant breakfast and the cereal bar. Meal C: scratch the pecans only. On the Duke: [sic], Day 8, last meal, scratch the beef and gravy and substitute a hamburger. And, scratch two-thirds of a chocolate bar. Scratch the gingerbreads. On Day 9, Meal A: scratch the peaches. And on Meal B: scratch the hamburger and - in a wetpack and the - and the cereal bar. And, add turkey and gravy. On day 9, Meal C: scratch the pecans only and add an orange drink. I think that about does it.

213 18 47 Hartsfield: Thank you, John. The surgeon's happy, and we didn't get any biomed on you last night. Could you check your system. Or, you have any idea why it didn't work?

213 19 07 Young: I sure had it plugged in. I had it plugged in the night before last, too. I don't understand that. I got the leads tight -

213 19 31 Hartsfield: Okay. We're getting a - the carrier, John. We're just not getting modulation. So, there must be something fouled up in the system, there.

213 19 41 Young: Okay. Well, why didn't you tell me, I could have changed this sensor out' - or this - it's probably in this box here, don't you reckon?

213 20 01 Hartsfield: Okay. When you get a chance, John, just check it out.

213 20 32 Hartsfield: And, we were - we lost our data on the antenna switching with your P52. Could we get those angles, please?

213 21 00 Young: You - you have any idea what it might be that I could do to fix this ...

213 21 55 Hartsfield: 16, Houston.

213 24 37 Hartsfield: Apollo 16, Houston. We just went through an antenna switch there, and I lost anything you said, then. And, John, if you're asking about the sensor there, the only thing we could suggest is to check the connections there into the blue signal conditioner and maybe change out your sensors or service them.

213 24 59 Young: Okay. I can't - I can't believe that if you got the carrier that changing out the sensors is going to change anything. These things are really stuck on there. Let me try something.

213 25 23 Hartsfield: Okay. Whatever you did, John, worked. We got us a signal there.

213 25 31 Young: I didn't do anything.

213 25 46 Young: (Garble) working now?

213 25 49 Hartsfield: It's working now. And what - what angles are you showing on your High Gain now, on your meter?

213 25 58 Young: Showing - 50 - minus 50 in Pitch - make it 45, and about -

213 26 21 Young: 2 - 260 in Yaw.

213 26 35 Hartsfield: Okay. They want to know now what's on the knobs.

213 26 44 Young: Okay. It's - right now, it's reading minus - We'll get the Pitch, minus 40 and minus 40 on the knob - and it's reading 90 Degrees in Yaw and still about 265 in Yaw in - on the indicator.

213 27 04 Hartsfield: Roger. And, 16, we'd like to get that P52 data.

213 27 21 Mattingly: Okay. We've got stars 50 and 22; Noun 05: all zeroes; Noun 93: minus 0.040, plus 0.030, plus 0.058; torqued at 213:23:55.

213 27 38 Hartsfield: Roger. We got them.

213 28 38 Hartsfield: And, 16, whenever you're ready, we'll give you a few of these changes.

213 29 11 Young: Okay. Charlie's ready to copy.

213 29 13 Hartsfield: Okay. At 238:20 [213:33] in the Flight Plan.

213 29 26 Duke: Okay. Go ahead.

213 29 29 Hartsfield: Roger. Gamma Ray Shield, Off. Stand by, Charlie. they say it's already off ...

213 29 37 Young: The Shield's Off right now, Hank.

213 29 39 Hartsfield: ... (garble) scratch that.

213 29 43 Duke: We just turned it Off, Hank.

213 29 45 Hartsfield: Okay. In that next group of data there, delete anything that refers to the Mass Spec, since we don't have it any more.

213 29 54 Duke: Okay.

213 29 58 Hartsfield: And, about 238:50 [214:03], we want Gamma Ray Shield, On.

213 30 13 Duke: Okay.

213 30 16 Hartsfield: And, the group of data concerning the P30. We want to start the P30, actually, around 238:46. But, we'll have to get you up-linked, and we're working on that now.

213 30 34 Duke: All right.

213 30 40 Hartsfield: And, you'll exit PTC prior to that - just put that in just ahead of the P30.

213 30 48 Duke: Okay. Exit PTC right in front of the P30.

213 30 52 Hartsfield: Roger. Using the SIM bay jett configuration.

213 31 09 Duke: All right.

213 31 10 Hartsfield: And, as soon as we get the sextant star check there on over at 239, we'll go ahead and get the dumps out of the way.

213 31 24 Duke: Okay. We will. We'll start the dumps right after the star check.

213 31 28 Hartsfield: Okay. At 239:30 [214:43], the High Gain angle -

213 31 34 Duke: Hold the phone a minute.

213 32 11 Duke: Okay. Go ahead.

213 32 13 Hartsfield: At 239:30 [214:43] -

213 32 37 Hartsfield: Do you read, Charlie?

213 33 03 Hartsfield: 16, Houston. How do you read?

213 33 09 Duke: You're 5 by, Hank. Go ahead.

213 33 12 Hartsfield: Okay. At 239:30 [214:43], those High Gain angles should be minus 16 and 58.

213 33 27 Duke: Copy. Minus 16 and 58.

213 33 30 Hartsfield: Okay. And if you'll flip on over to page 351.

213 33 39 Duke: Go ahead.

213 33 40 Hartsfield: Okay. As we call - we need another hour for suit donning. So, that time there at 241, at the top of the page, will now be 242 [217:13]. So, there's actually an hour's gap between the previous page and this one. And, you can change your time accordingly, adding an hour on to - You get down to hatch opening or until you get on the EVA cue card. And, then we'll pick up the Flight Plan after the EVA. Now, at 242 hours - that's after it's changed there where it says Verb 49 maneuver to EVA attitude, the new attitude is 037, 043, 038, and the High Gain angles are minus ...

213 34 26 Duke: Roger. 03 ...

213 34 27 Hartsfield: ... High Gain is minus 10, 244.

213 34 41 Duke: Okay. We change Verb from 49, angles to 037. The other two are the same. High Gain, minus 10, 244.

213 34 57 Hartsfield: Okay, Charlie. They just changed that Yaw angle while I was reading it up. It's 224.

213 35 07 Duke: Okay. 224.

213 35 10 Hartsfield: Okay. Down about - a few lines down where it says, "Load MEED attitude - that attitude now is 071,. 051, 039.

213 35 30 Duke: Copy. 071, 051, 039.

213 35 40 Hartsfield: Okay. And if you'll flip the page now - Page 352 - the new time there is 243:40 [218:53]. Where it says, "Maneuver to MEED attitude," we want to change that again to 071, 051, 039, and the High Gain angles are minus 34, 218.

213 36 18 Duke: Okay. At the - this whole page has slipped an hour, and it's at 243:40 [218:53]; 071, 051, 039, to minus 34 and a 218.

213 36 35 Hartsfield: Roger, Charlie. And, we need to make those - those appropriate changes on the cue card and then the EVA Checklist. And, I - I have those locations, if you want to do that.

213 36 52 Duke: Well, we'll do that, Hank. We promise.

213 36 55 Hartsfield: Okay.

213 37 17 Duke: Is that all you've got for now?

213 37 19 Hartsfield: That ought to take us through the EVA, Charlie.

213 37 23 Duke: Thank you, sir.

213 37 52 Duke: Okay - 2 - 38.5 (garble).

213 38 00 Duke: (Garble). John.

[CM transcript restarts.]

213 38 32 Young (onboard): Okay, I'll agree with it.

213 38 34 Duke (onboard): Why don't we get the ...

213 38 35 Mattingly (onboard): You leave my pencil with it?

213 38 37 Duke (onboard): Yeah. And we got this burn coming up before we eat.

213 38 40 Mattingly (onboard): Yep. Yeah, I can do that while you're eating.

213 38 48 Young (onboard): (Garble).

213 38 50 Mattingly (onboard): Huh? That RCS?

213 38 54 Duke (onboard): Yeah.

213 38 55 Young (onboard): Yeah.

213 38 59 Duke (onboard): I think something (garble).

213 39 01 Young (onboard): Is that right? (garble).

213 39 08 Duke (onboard): I guess they are? (garble).

213 39 09 Young (onboard): (Garble) about it. I - I had to put mine up in (garble).

213 39 30 Duke (onboard): Ken, you got to get off my bag. Ken, whoa, Ken.

213 40 02 Duke (onboard): (Laughter) All night long with no biomed.

213 40 05 Young (onboard): I sure had it plugged in. I had it plugged in the night before last, too. I don't understand that.

213 40 32 Duke (onboard): (Garble) get that up (garble).

213 40 40 Young (onboard): Okay. Well, why didn't you tell me, I could have changed this sensor out - this - It's probably in this box here, don't you reckon?

213 40 54 Mattingly (onboard): Well, here's a spare ...

213 40 55 Young (onboard): Yep.

213 40 56 Mattingly (onboard): ... (garble).

213 40 57 Duke (onboard): (Garble).

213 40 58 Mattingly (onboard): They're about ...

[break in CM transcript until 214 06 46.]

213 40 59 Hartsfield: Apollo 16. On the High Gain, go Manual and Wide, and then Reacq Narrow.

213 41 55 Mattingly: Go ahead.

213 43 03 Hartsfield: Apollo 16, Houston. If you read, Manual Wide and then Reacquire Narrow.

Public Affairs Officer: This is Apollo Control, Houston, at 238 hours, 36 minutes [213:49] Ground Elapsed Time. We now show Apollo 16 at a distance of 185,317 nautical miles away from the Earth and travelling at a speed of 3,783 feet per second and we've been experiencing some noisy comm with Apollo 16. Meanwhile, Mid-Course Correction number 5 is presently scheduled for 239 hours, 20 minutes [and] 56 seconds [214:34:54] Ground Elapsed Time with a Delta V of 3.4 feet per second, [and] a burn duration of eight seconds. This will be performed with the Reaction Control System thrusters, posigrade to change the flight path angles from minus 8.6 to minus 6.5 degrees. We presently show Apollo 16 with a spacecraft weight of 27,409 pounds, at 238 hours, 37 minutes [213:50] Ground Elapsed Time, [and] continuing to monitor, this is Apollo Control, Houston.

213 53 53 Hartsfield: Apollo 16, Houston. I have your Mid-Course 5 pad, and if you'll give us Accept we'll up-link the target load and vector.

213 54 03 Mattingly: Okay. Stand by one.

213 54 08 Hartsfield: And we're also sending you a PIPA bias with that load.

213 54 26 Mattingly: Okay. You got the computer.

213 54 41 Young: Hank, go ahead with the pad.

213 54 44 Hartsfield: Roger. MCC-5, RCS/G&N; 27409; Noun 48 is NA; 239:20:55.86; Noun 81 plus 0003.4, all zips, all zips; 079, 306, 346; HA is NA, plus 0021.7; 0003.4, 0:09, 0003.4; 04, 047.9, 39.1; boresight star 056, up 27.0, left 3.5; and for Ken's information, that's Beta Centauri, and it's on the white chart and it lies between Atria and Acrux. Continue with Noun 61, minus 00.73, minus 156.19; 1046.3, 36277; 290:24:04; Sirius and Rigel; 219, 166, 313; four jets, plus-X. High gain angles: pitch, minus 90; yaw, 285; and a note that the EMS is not bias for drift.

213 57 23 Young: Okay. We copy Mid-Course 4 [sic], RCS/G&N, 27409; NA for Noun 48; 239:20:55.86; plus 0003.4, plus all balls, plus all balls; 079, 306, 346; HA is NA, plus 0021.7; 00C3.4, 0:08; 0003.4; Oh, 047.9, 39.1; 056, up 270, left 35; Beta Centauri, minus 00.73, minus 156.19; 1046.3, 36277; 290:24:04, Sirius and Rigel; 219, 166, 313; four jets, plus-X. High gain: plus pitch, minus 90; yaw, minus 255 - pitch, minus 90; yaw is 285; EMS is not bias, for drift.

213 58 42 Hartsfield: Good readback. And we'd like to get the Gamma Ray, shield on.

213 58 55 Mattingly: The Gamma Ray shield is now shielding.

213 59 49 Hartsfield: Apollo 16, Houston. We're having a little trouble getting the High Gain to acquire, so we'll be calling you Omni switches, so we can maintain voice.

213 59 59 Young: Okay.

214 00 04 Mattingly: Hank, I had a question here. You said to exit the - use the SIM bay jett configuration. Then, I notice where you called out for a plus-X four jet on the Mid-Course. Are those two things compatible?

214 00 28 Hartsfield: Roger. What happened there, Ken, was we were gonna do a Gamma Ray extension for a little - out a little ways, and we've - we've cancelled that now, so that's not even a requirement anymore. You can use normal jet configuration.

214 00 48 Mattingly: Okay, thank you.

214 00 51 Hartsfield: And, 16; Omni Alfa.

214 01 05 Young: Okay; you have Omni Alfa with a Command Reset.

214 01 08 Hartsfield: Roger.

214 01 20 Mattingly: And, Hank, can I go - go ahead and stop PTC passing 79 degrees roll, this time?

214 01 28 Hartsfield: That's affirmative.

214 01 34 Mattingly: Okay. And how about the status of the computer? You guys still using it?

214 01 49 Hartsfield: Computer's yours.

214 01 55 Mattingly: Thank you.

214 06 26 Hartsfield: Omni Bravo, 16.

214 06 37 Mattingly: You have it.

214 06 40 Hartsfield: Roger.

[CM transcript restarts.]

214 06 46 Mattingly (onboard): ... you guys.

214 06 47 Duke (onboard): (Garble), Ken?

214 06 52 Mattingly (onboard): I didn't notice.

214 07 12 Hartsfield: How big is the Moon this morning?

214 07 21 Mattingly: Haven't gotten around to looking yet, Hank.

214 07 34 Duke (onboard): Think we ought to tell the docs we - I'm using some of this skin cream? For this dryness? On my arms ?

214 07 44 Mattingly (onboard): Want to?

214 07 46 Duke (onboard): Well, I mean they'd be real pleased,

214 07 48 Mattingly (onboard): You're gonna start something. Are you sure you want to finish it?

214 07 52 Duke (onboard): What do you mean, Ken?

214 07 53 Mattingly (onboard): You're gonna start a long discourse with those guys. They're gonna want to know what it is, describe it to them and ...

214 07 58 Duke (onboard): I tell you it's nothing on my arm - I'll tell them it's nothing.

214 08 02 Mattingly (onboard): Well, okay; but just - Just be prepared to - It's not a simple thing of saying, I'm doing this.

214 08 06 Duke (onboard): Yeah, they're - Okay.

214 08 10 Mattingly (onboard): I think you're probably doing the right thing, but beware.

214 08 16 Duke (onboard): They've - they got -

214 08 18 Mattingly (onboard): Yeah.

214 08 19 Duke (onboard): They get upset when there's just medication gone.

214 08 22 Mattingly (onboard): Yeah.

214 08 23 Duke (onboard): And we haven't told them about it.

214 08 24 Mattingly (onboard): Yep.

214 08 25 Duke (onboard): So I put it on my cut.

214 08 28 Mattingly (onboard): They're gonna want -

214 08 30 Duke (onboard): They're gonna want to know why you didn't report your cut.

214 08 32 Mattingly (onboard): Yep. It's - Let's see, I don't know which side the Moon is on, (garble) do is look. In fact, I'll tell you what I'll do. When we get there, is I'll ask the computer where the Moon is. It knows. It knows everything.

214 08 50 Duke (onboard): Ah, yes.

214 08 53 Mattingly (onboard): Sees all; tells all. My own version of Hal.

214 09 22 Duke (onboard): There it is, right out the hatch window, on this side. See it, John? If you hold a silver dollar up to the window, it might cover.

214 09 38 Mattingly (onboard): Okay; that small? Aw, the stinker.

214 09 42 Young (onboard): No, it's probably bigger than a silver dollar.

214 09 46 Duke (onboard): I bet at arm's length it -

214 09 51 Young (onboard): Yeah, it's a little bit bigger - no, it's a little bit smaller than a silver dollar.

214 09 54 Mattingly (onboard): Yeah, it's smaller.

214 09 57 Duke (onboard): At arm's distance.

214 10 07 Duke (onboard): Fifty cents?

214 10 09 Young (onboard): Fifty-cent piece, yeah.

214 10 11 Mattingly (onboard): (Garble).

214 10 22 Young (onboard): Well, feels like we're about ...

214 10 24 Mattingly (onboard): If you really want to be precise, we'll check the distance, and you can give them a ratio. And then they'll really think you're smart. They'll think that's a bunch of (garble).

214 10 37 Young: Okay, Hank, at arm's distance, if you cup your fingers around it, it's about as big as a 50-cent piece. But you can sure tell that it's changed size for the smaller, but we still feel like we're still pretty close to it. Like I - I don't know how far away from it we are, but, probably about - maybe 25 or 30,000 miles.

214 11 05 Mattingly (onboard): Fifty-three.

214 11 07 Young: No, Ken tells me 53.

214 11 07 Young (onboard): That's why they let the computer run it.

214 11 14 Hartsfield: Roger. We show you about 30,000.

214 11 15 Young: 30,000? Okay.

214 11 20 Mattingly (onboard): Couldn't be. Look at that; 187,0007

214 11 23 Hartsfield: Take it back; they rewrote about 38,000.

214 11 28 Young: Okay.

214 11 28 Mattingly (onboard): EECOM. The Flight Plan's wrong, then.

214 11 35 Duke (onboard): Well, now, we - Yeah.

214 11 44 Mattingly (onboard): That 30,000 here is still in my lunar - lunar sphere, aren't you?

214 11 46 Hartsfield: And:, 16, when you get the attitude, we'd like for you to bring up the High Gain, and you're there.

214 11 53 Young: Roger.

214 11 56 Mattingly (onboard): I don't understand that.

214 11 59 Duke (onboard): What are the angles?

214 12 02 Mattingly (onboard): Minus 90 and 285.

214 12 08 Duke (onboard): For some reason (garble) only got (garble).

214 12 12 Mattingly (onboard): Oh, is that right? Oh, I thought it was 240. That's where I missed it.

214 12 18 Young (onboard): Yeah.

214 12 19 Duke (onboard): (Garble).

214 12 25 Young (onboard): It's minus 90 and (garble).

214 12 27 Mattingly (onboard): 285. Let's see, did we put the shield back on?

214 12 35 Duke (onboard): Yeah.

214 12 38 Mattingly (onboard): Okay. How about looking at the repress package and tell me if it's repressed.

214 12 48 Young (onboard): It's repressed.

214 12 49 Mattingly (onboard): We're gonna ...

214 12 50 Duke (onboard): Can't get the ...

214 12 51 Mattingly (onboard): We're gonna use it. Well, I've got minus 90 and 171. Of course, that's the center of the Earth. Mine may be over on a limb. Boy, that's a big discrepancy. There's no way that y'all can - Well, at minus 90, it doesn't matter. That's right.

Public Affairs Officer: At 238 hours 59 minutes [214:13] Ground Elapsed Time. We now show Apollo 16 at a distance of 184,476 nautical miles away from the Earth. Now travelling at a speed of 37 hundred and 95 feet per second. That was John Young that you heard providing a description of the moon as he viewed it out the cabin window.

214 13 17 Duke (onboard): (Garble).

214 13 19 Young (onboard): (Garble) problem on that (garble).

214 13 23 Mattingly (onboard): Okay. Let's do it; avoid the gimbal problems.

214 13 26 Young (onboard): Yeah.

[Break in CM transcript until 214 58 51.]

214 13 32 Duke: Okay. Henry, how do you read on the High Gain?

214 13 34 Hartsfield: Reading you five by five by 5, Charlie.

214 13 41 Duke: Okay, you're in Reacq in error.

Public Affairs Officer: This is Apollo Control, Houston, we're 20 minutes away now from time of ignition from the Mid-Course Correction 5 scheduled at 239 hours, 20 minutes [and] 56 seconds [214:34:54]. This will be a burn that will provide a Delta V of 3.4 feet per second with a duration of 8 seconds. Done with the RCS pulsic rate [?] that will change the flight path angle from minus 8.6 degrees to minus 6.5 degrees. We're at 239 hours, 2 minutes [214:15] Ground Elapsed Time. Apollo 16 now 184,380 nautical miles away from the Earth. This is Apollo Control, Houston.

214 16 01 Hartsfield: Apollo 16, Houston. We're getting close to that Mid-Course, and we'd like to go ahead and get the dumps out of the way. Platform alignment looks good, so you can omit the star check, if you like.

214 16 15 Young: We just looked at the boresight star. That's a good one. We're not going to mess with the sextant check, and we're in process of dumping.

214 16 22 Hartsfield: Real good. Could you find that - star 56?

214 16 29 Young: Oh, yeah. Alpha and Beta [Centauri] are two of the prettier stars you can find. Even I can recognize those.

214 16 38 Hartsfield: Roger.

214 17 02 Hartsfield: Ken, we got a list of questions here on the SIM bay inspection - when you get out on the EVA, and we can handle them any way you like. It's about a page and a half of them. Would you rather I read them after you're out or ...

214 17 17 Mattingly: Okay. Could you? Okay. No, I'd like to hear them first, but, not right this minute.

214 17 23 Hartsfield: Okay, I just want ...

214 17 24 Mattingly: I'11 give you a call in just a minute when we get squared away here.

214 17 27 Hartsfield: I just wanted to apprise you of the fact that I had them, and then whenever you're ready we'll talk about them.

214 17 59 Hartsfield: 16, Houston. Did you have any trouble with your LiOH canister change today?

214 18 06 Mattingly: No, sir.

214 23 25 Hartsfield: 16, we show you about 10 percent en the waste tank.

214 23 30 Young: Thank you, boss.

Public Affairs Officer: This is Apollo Control, Houston at 239 hours, 12 minutes [214:25] Ground Elapsed Time, less than 10 minutes away now from the Mid-Course Correction number 5 burn, and we presently show the onboard computer in Program 30. This is the external Delta V program which is used for engine ignitions. We're at 239 hours, 12 minutes [214:25] Ground Elapsed Time and Apollo 16 now 183,995 nautical miles away from the Earth. This is Apollo Control, Houston.

Public Affairs Officer: This is Apollo Control, Houston, the onboard computer now in Program 41 of the SC RCS program to provide a [correct] attitude for an RCS thrusting maneuver. We're now seven minutes away from time of ignition for Mid-Course Correction number 5.

214 31 27 Mattingly: Hey, Henry?

214 31 31 Hartsfield: Roger.

214 31 36 Mattingly: Hey, I've put on some new sensors. How about seeing if your friends over on the left there are happy with that.

214 31 44 Hartsfield: Okay.

214 32 05 Hartsfield: They look great, Ken.

214 32 11 Mattingly: Okay.

Public Affairs Officer: Apollo Control, Houston, two minutes away now from time of ignition from Mid-Course Correction number 5. We're at 239 hours 19 minutes [214:32] Ground Elapsed Time.

Public Affairs Officer: Flight Director, Phil Shaffer, taking a final status check in Mission Control for Mid-Course 5.

214 33 40 Hartsfield: 16, Houston. You're looking good, and you're Go for the burn.

214 33 47 Mattingly: Okay.

Public Affairs Officer: One minute away now from Mid-Course 5.

Public Affairs Officer: Apollo 16 now 183,706 nautical miles away from the Earth.

Public Affairs Officer: Ten seconds away now.

Public Affairs Officer: Guidance reports plus X.

Public Affairs Officer: Standing by now for burn status.

214 36 44 Young: Okay, Houston, I guess as you saw, the burn was nominal. Our residuals: minus 110, plus 0, minus 110; and you probably saw our Noun 20 for the attitude. Over.

214 36 57 Hartsfield: Roger. We copy the Noun 20.

Public Affairs Officer: This is Apollo Control, Houston. That was John Young reporting a nominal burn on Mid-Course Correction number 5.

214 37 25 Mattingly: Hank, you want to leave the Mapping Camera on; is that correct?

214 37 28 Hartsfield: That's affirmative, Ken.

214 37 32 Mattingly: Okay.

214 37 48 Hartsfield: And Ken, the Mapping Camera is out of film, but the Stellar Camera is still feeding a little.

214 37 57 Mattingly: Okay. We gave it lots of stars to look at, just then.

214 38 08 Young: Hank, is the High Gain gonna track us to this maneuver, or should we set it Manual and Reacquire when we ...

214 38 17 Hartsfield: Seems to be tracking good now.

214 38 18 Young: Never mind.

214 38 23 Duke: Hey, I'm going to start Battery B Charge.

214 38 25 Hartsfield: Copy.

Public Affairs Officer: Apollo Control, Houston. 239 hours, 25 minutes [214:38] Ground Elapsed Time. Apollo 16 now 183,521 nautical miles away from the Earth. Velocity now reading 2,809 feet per second. Mid-Course Correction 5 are [sic] completed and as was reported by Apollo 16 a nominal on time burn. We're at 239 hours, 25 minutes continuing to monitor.

214 39 25 Mattingly: Hey, Hank, when we were allowed to sleep through the eat period there, did we move the EVA back or anything like that?

214 39 34 Hartsfield: Negative. The EVA is - at the nominal time - including that hour, you know, that we had to put in there. One-hour slip from what was originally in the Flight Plan.

214 39 50 Mattingly: Okay. We just traded off eating and sleeping this morning, is that it?

214 39 57 Hartsfield: We were hoping you were grabbing some snacks in there early this morning.

214 40 06 Mattingly: Man, with three guys in here, Hank, you just - when it comes time to eat, you just bring everything to a halt and go do that that's - because everything has to be done in the kitchen. You got to take your 52s and you got to do everything else right in one place. We'll grab something and we'll be pressing on here; we'll - we'll probably come pretty close to the schedule.

214 40 25 Hartsfield: Okay, we're scheduled for hatch opening at 242:55 [218:08].

214 40 33 Young: Okay; we'll - we'll try to be there, and if we don't make it there, why, we'll get it as soon as we get there.

214 40 37 Hartsfield: Okay.

214 40 55 Young: Hey, Hank, we just looked at - at the battery compartment pressure. We're reading 3.4. You want us to vent that thing?

214 41 04 Hartsfield: Stand by.

214 42 20 Mattingly: Okay, Hank. And I can copy your comments about the SIM bay now if you'd like to give them now, while ...

214 42 28 Hartsfield: Okay. In regard to the Mapping Camera, they want to check the interference. Inspect the periphery of the Mapping Camera and Laser Altimeter for any evidence of interference. The last attraction on that thing was nominal ...

214 42 44 Mattingly: Okay.

214 42 45 Hartsfield: ... so it's kind of puzzling, you know. It started out real slow and each retraction it got faster.

214 42 53 Mattingly: (Garble) it's just getting warmed up.

214 42 55 Hartsfield: Roger. Some of the things they suggest you might look for is - around the cable, there, between the Mapping Camera and the shelf, is there any damage to the cable? Clearance in that area of the cable? And whether the cable is caught or curled ...

214 43 15 Mattingly: Okay. Now, that cable is located on the - on the plus-X side of the camera over on the - towards the A quad, is that correct?

214 43 28 Hartsfield: That's affirmative.

214 43 31 Mattingly: Okay. Thank you.

214 44 05 Hartsfield: Okay. We want to know if that cable is caught or curled or is it smooth, you know, like it's supposed to? That's between the - what I would call the top of the Mapping Camera and the bay, there, by the handhold.

214 44 20 Mattingly: Okay. I know the area. I'm not sure we're gonna have enough light to see down in there in the EVA attitudes but we'll take a look at it.

214 42 34 Hartsfield: And we'd like to know a little something about the cuckoo door. You know which one that is? The little white door that goes over the stellar lens?

214 44 45 Mattingly: Okay. I won't be able to tell you much about that in the retracted position, either.

214 44 51 Hartsfield: Roger. If possible, we'd like for you to lift up that door and inspect the clearance between the hinge and the top of the Mapping Camera, and look for any scrape marks on the camera or on the door and any evidence of twisting or bending of the stellar lens glare shield.

214 45 11 Mattingly: Okay.

214 45 13 Hartsfield: Any question on that part with reference to the Mapping Camera, Ken?

214 45 20 Mattingly: Say again.

214 45 21 Hartsfield: Did you have any question about any of those Mapping Camera items?

214 45 26 Mattingly: No, sir.

214 45 30 Hartsfield: Okay. In regard to the Pan Camera, we'd like for you to look at the exposure sensor. And that's the ones that's immediately to the left of the lens barrel.

214 45 49 Hartsfield: And we need Auto on the High Gain.

214 45 55 Young: Got it.

214 45 58 Hartsfield: Okay. In - In regard to that automatic exposure control sensor there, Ken, what we're looking for is foreign objects or contamination.

214 46 13 Mattingly: Okay.

214 46 14 Hartsfield: And the little thermal shield that goes around the periphery of the lens barrel, we want to inspect that for contamination, and also, the lens barrel itself. And we're really looking for contamination really on all of the Pan Camera, and the same goes for the V over H sensor.

214 46 36 Mattingly: All right.

214 46 39 Hartsfield: And just to refresh your memory, the V over H sensor is the one that's on the right side that's got the little hood on it.

214 46 47 Mattingly: Okay.

214 46 52 Hartsfield: And for the Gamma Ray boom, what we'd like to do is inspect the cover for any damage. You know, that thing has closed a couple of times and - or the boom has retracted all the way a couple of times and a couple of times it hasn't. So - so we're expecting that the Gamma Ray boom right now is about 6 inches out; but we're not sure. We'd like for you to look at the cover, and if it's not fully closed, give us an estimate of how far it's open. Full open is about 134 degrees.

214 47 24 Mattingly: Roger. I'm familiar with that.

214 47 26 Hartsfield: Clay. If the cover is partially open ...

214 47 27 Mattingly: Okay. Is Brad [?] taking bets on where it is?

214 47 38 Hartsfield: He's not - he's not too brave. He'll bet you a cup of coffee it's about 6 inches.

214 47 48 Mattingly: Okay. I heard that. He's on.

214 47 51 Hartsfield: He said he takes it. And we'd like to know how far that rail protrudes through the bind there, and if you can see any obstructions to retractions, you know, like the harness, or the guides, or the loom cable fingers, proximity switches, any of those things - report them.

214 48 10 Mattingly: Okay.

214 48 12 Hartsfield: And that's all we want to know, Ken, other than any other things you might pick up from looking around out there.

214 48 22 Mattingly: Okay; do you require any kind of documentation on this?

214 48 30 Hartsfield: I guess we'll have to take verbal comment.

214 48 37 Mattingly: Okay.

214 48 48 Hartsfield: And, Ken, we'd like to vent the battery compart - compartment to 1 volt on your meter. Stop it at 1 volt.

214 49 01 Mattingly: Okay; well, all righty.

214 49 04 Young: It drops like a stone; I don't know if we can do that or not. We'll try it.

214 49 17 Hartsfield: Give it a try.

214 49 43 Young: We got 1.2 on there; you want to press and try for 1?

214 49 48 Hartsfield: That's real good, John. We'll hold it right there.

214 49 53 Hartsfield: And, Ken, the stellar camera's out of film, if you want to use a normal shutdown procedure on the Mapping Camera.

214 50 01 Mattingly: Okay.

214 50 49 Hartsfield: 16, Houston. He kind of would like to know if that's the first time you've noticed that Bat vent or bat - battery compartment pressure above 1.5 volts?

214 51 17 Mattingly: John says that when they did the first charges they had to take it and vent it, but the charges I did I never saw it above 1.5.

214 51 27 Hartsfield: Roger. Copy. We'll probably be asking you for a check of that here in a little while, just to make sure it's not charging way on up there again.

214 51 35 Young: Okay; we reported the other times that we vented it.

214 51 40 Hartsfield: Roger, John.

214 52 00 Hartsfield: And, 16; Houston. I'm gonna go off the loop a couple of minutes; Phil will cover for me.

214 52 08 Mattingly: That's not fair.

214 52 12 Hartsfield: But it's necessary.

214 52 18 Mattingly: Now you understand.

214 53 25 Mattingly: How are you doing today, Philip?

214 53 28 Hartsfield: Doing very well, sir; thank you. And yourself?

214 53 34 Mattingly: Oh, we're having a ball. Just wanted to hear you on the loop.

214 53 37 Hartsfield: Well, you've certainly done that. It's another first.

214 53 45 Mattingly: Well, always nice to have a few of those.

214 54 39 Hartsfield: 16, Houston. Are you gonna get to the mapper in little bit?

214 54 49 Mattingly: Sure will; thank you.

Public Affairs Officer: This is Apollo Control, Houston. That was flight director Phil Shaffer now talking to the - to the crew of Apollo 16. We're at 239 hours, 41 minutes [214:54] Ground Elapsed Time, and Apollo 16 now 182 904 nautical miles away from the Earth.

214 58 51 Mattingly (onboard): ... (garble) Let me do it.

214 58 52 Young (onboard): No, I'll do it.

214 58 53 Mattingly (onboard): (Garble).

214 58 56 Duke (onboard): (Garble) orange Juice.

214 58 59 Young (onboard): I'd like some orange juice, too. There isn't any.

214 59 24 Duke (onboard): Anybody want a fruit cocktail right now? I got two of them in my TSB (garble).

214 59 57 Young (onboard): (Garble) some orange Juice?

215 00 00 Duke (onboard): (Garble) hot water (garble) cold.

215 00 00 Hartsfield: Apollo 16, Houston. Could you dial in your High Gain angles for the thermal attitude?

215 00 02 Young (onboard): No. Cold water. That's what I'm saying. I wouldn't do that unless you like hot water in your cereal. I know you don't like it in your orange juice.

215 00 42 Young (onboard): Try it and be quiet.

215 00 52 Mattingly (onboard): Oh.

215 01 17 Mattingly (onboard): Golly!

215 01 20 Duke (onboard): What'd you do?

215 01 21 Mattingly (onboard): Oh, boy. All over (laughter). Gosh.

215 01 31 Duke (onboard): (Garble).

215 01 41 Mattingly (onboard): Oh, look at that. Hey, I'll tell you what would be a good idea.

215 01 47 Young (onboard): What?

215 01 48 Mattingly (onboard): Planning purposes, while you got food open, is to stick a couple of juice bags into the - in somebody's TSB for post-EVA. Because it's going to be awhile after that before we get around to getting unsuited and all that jazz.

215 02 00 Young (onboard): Okay (garble).

215 02 03 Mattingly (onboard): Well, okay. I was going to stick my juice bag in there for post-EVA or maybe for a - a pre-EVA last drink. No. I won't do a post-EVA - Stick it in my bag. Okay; where's our trashy.

215 02 28 Mattingly (onboard): Is our trash bag right down there? Yeah. How about the pills?

215 02 41 Mattingly (onboard): Got the pills down there, John?

215 02 43 Young (onboard): Yep.

215 02 49 Mattingly (onboard): Oh, boy. Well, I'll say one thing, coffee up your nose clears out your sinuses.

215 02 55 Young (onboard): That right?

215 02 59 Mattingly (onboard): Darn silly way to do it. I think I'm getting the hang of these pills. That gets to be fun. Okay, I take it - if you guys could -

215 03 25 Young (onboard): What do you need?

215 03 26 Mattingly (onboard): Well, (garble) there's no way we can get ahead. Then we got to do it anyway. Defecate.

215 03 31 Duke (onboard): No. Uh-huh.

215 03 34 Duke: Hank, 16.

215 03 37 Hartsfield: Go ahead.

215 03 41 Duke: Okay; the Bat B Charge is underway, and we've been watching this battery compartment, and we're back up to 2 now.

215 03 52 Hartsfield: Roger. Copy.

215 03 59 Young (onboard): 1.8, Charlie.

215 04 01 Duke (onboard): Well, okay. I'm sorry. It's still climbing.

215 04 13 Young (onboard): No, it's important, though. It's only 1.82. Great difference as far as pressure is concerned if it fails (garble).

215 04 22 Duke (onboard): Come on! Uh-oh.

215 04 28 Mattingly (onboard): What's the matter now?

215 04 29 Duke (onboard): My sausage got off my spoon.

215 04 32 Mattingly (onboard): Oh, I thought you had something major.

215 04 34 Young (onboard): (Garble) how you eat that. Don't handle it, Charlie.

215 04 36 Duke (onboard): Well, I couldn't squeeze it out of there, John.

215 04 38 Young (onboard): Couldn't, huh?

215 04 39 Duke (onboard): Unh-uh.

215 04 43 Mattingly (onboard): That's amazing. Something's screwed up here.

215 04 46 Duke (onboard): Try it on the - I know it - try it on the ...

215 04 49 Mattingly (onboard): Wide Beam.

215 04 50 Duke (onboard): ... Wide, to start - to start with. Start on Wide.

215 04 52 Young (onboard): But look at that, Narrow. You should - There is something wrong with the beam switching.

215 04 57 Mattingly (onboard): (Garble) better signal (garble).

215 05 06 Mattingly (onboard): It ain't working. Man, I'm glad as long as that ...

215 05 09 Duke (onboard): I got it. I got it. It's working.

215 05 11 Mattingly (onboard): Glad -

215 05 14 Young (onboard): (Garble).

215 05 24 Duke (onboard): Here it comes.

215 05 25 Mattingly (onboard): Yeah, but it - it's not working. Yet this works like a -

215 05 32 Mattingly: Hank, I don't really know what's going on with our antenna. It's - I get you the best signal strength by going to Manual and Narrow, and every time we switch to either Auto or Reacq, why, it seems to break - break some kind of beam switch lock, or something, and we've tried going to Manual and Wide and working in through Reacq and then bringing it down and things, and that doesn't help any. Would there be any future in trying the secondary electronics, the servos?

215 05 XX Mattingly (onboard): Think it's in the antenna electronics itself. Which one you going to fix?

215 06 07 Hartsfield: Okay; INCO says we're just right on the line there. Why don't we just leave it in Manual and Narrow.

215 06 17 Mattingly: Okay.

215 06 17 Young (onboard): All right, who's the guy stole my sugar?

215 06 19 Mattingly (onboard): Oh-oh. I didn't know you were going to eat that. I 'm sorry.

215 06 24 Duke (onboard): It's already reconstituted.

215 06 26 Mattingly (onboard): Was it? I don't think that's a purely reconstituted, what's in there. There's a - that - that hasn't reconstituted.

215 06 34 Duke (onboard): No.

215 06 35 Young (onboard): Well, Charlie, I don't need it. Here's another one.

215 06 38 Mattingly (onboard): And it ain't reconstituted. That's all I threw in there, honest.

215 06 42 Duke (onboard): (Garble).

215 06 43 Mattingly (onboard): I did not, Charlie. But you may reconstitute this one.

215 06 49 Duke (onboard): That (garble) reconstituted.

215 06 58 Mattingly (onboard): You know, I think we - you know, I planned to use this bag because I thought we had about 3 days on it. Now, I'm gonna throw it away, and we got ...

215 07 04 Hartsfield: And, Ken, I'd appreciate it if from time to time, you'd just give me a idea of where you are in the checklist.

215 07 12 Mattingly: We is at the eat period.

215 07 14 Hartsfield: Hey, that's a good plan.

215 07 15 Duke (onboard): Ken, I don't think we ought to stow that big bag; that's not hardly much in that big one. We ought to do the small one.

215 07 20 Mattingly (onboard): That's what I was thinking about; putting this into something else.

215 07 22 Duke (onboard): That's right. We need this; we don't need that.

215 07 24 Mattingly: We'll be ready to start in on that checklist in probably about 10 minutes or so; but it just didn't seem like it was proper to go ahead and press on the rest of the day without stopping for something.

215 07 39 Hartsfield: I agree with you, and I guess we'd better terminate that Battery B Charge and keep an eye on that thing. If it gives - gets above 3, give us a call. And also -

215 07 53 Mattingly: Okay; why don't you call us back in about 30 minutes and ask us to look at it, because that's not the kind of position where we can keep an eye on it without making a conscious effort at it.

215 08 01 Hartsfield: Okay; we'll give you a reminder, and if it's above 3 or in that neighborhood, we're gonna want to vent it again back down to 1.

215 08 06 Young (onboard): There you go, Charlie.

215 08 12 Duke: Okay; do you want to vent it now. It's at 2.

215 08 16 Hartsfield: Negative. We want to see if it'll stabilize.

215 08 22 Mattingly: Okay; you've got the - the Bat B Charge is terminated, and we'll watch the battery's compartment pressure.

215 08 31 Mattingly (onboard): (Singing) Do-dee-do-dee-dah-dum. Let's see what's a good - We got one more of those plastic bags - overwrap bags in - in your TSB, John. Haven't we?

215 08 44 Young (onboard): I don't remember seeing it there yesterday.

215 08 46 Mattingly (onboard): I don't remember seeing it either, but ...

215 08 46 Hartsfield: While you're eating there, I'll tell you a little local sports news. The Astros have won seven in a row now, and they are tied for first place in the division.

215 08 57 Young: Wow, that's outstanding. Congratulations!(Laughter)

215 08 59 Mattingly (onboard): That is a first. Maybe we could make a little presentation - to Biafra - as we throw the bag out. On behalf of CSD, Rita Rapp, all Medical Directorate, all you starving people of Biafra, we're throwing away - one month's supply of food for the Trojan Army. (Laughter )

215 09 31 Young (onboard): What'd you say we're looking for here? A (garble)?

215 09 33 Mattingly (onboard): You remember that - that plastic bag like we (garble) the last day of the LM - threw the LM? There were two of those left over.

215 09 42 Young (onboard): Yeah.

215 09 43 Mattingly (onboard): You can't find them?

215 09 44 Young (onboard): Here it is.

215 09 45 Mattingly (onboard): Okay. Let's see if I can transfer this stuff into it and save this bag, because this is a big - this is a good bag for trash. We got another - we got aways to go yet.

215 09 57 Young (onboard): Gonna transfer all this stuff in here into it?

215 09 59 Mattingly (onboard): Yeah.

215 10 02 Young (onboard): I don't think you can make it work, man. There's a lot of trash in here.

215 10 06 Mattingly (onboard): Well -

[Break in CM transcript until 215 18 54.]

215 10 27 Hartsfield: 16, if it's convenient, could we get a check on the Bat C voltage?

215 10 41 Mattingly: Okay. It's 36-1/2.

215 10 43 Hartsfield: Roger. Copy 36.5.

215 10 56 Mattingly: Okay, Hank. And John stuck the eyeball right closer to the meter, and it's 1.9 instead of 2.

215 11 03 Hartsfield: Roger, 1.9.

215 12 23 Young: Okay. We're going to vent the battery - the bat compartment again, it's 2 and -

215 12 43 Hartsfield: Okay. If you want to try a vent, go ahead and see if you can stop it at 1.

215 12 50 Young: Okay.

215 12 51 Mattingly: What - What's wrong if we go below 1, Hank?

215 12 56 Hartsfield: Well, the problem is there, Ken, if it's - at 1 volt, we're - at 1.5 volt, we're roughly equal to cabin pressure in there and, if you go much below 1 and we do have a battery that's venting, you could lose the battery, if it goes all the way to vacuum.

215 13 18 Mattingly: Okay. And that's the only problem?

215 13 21 Hartsfield: Roger. In other words, if the - if the battery - a battery has vented and the - and the vent doesn't reseal - and it - and it's not resealed, if you go to vacuum, the electrolyte couldn't go - go out of it.

215 13 35 Mattingly: Roger. I understand that. That's the only problem, though. Is that correct? It won't affect the other batteries?

215 13 40 Hartsfield: That's affirmative. It shouldn't affect the other batteries.

215 13 45 Mattingly: Okay. Thank you. We'll try it for 1 again.

215 14 04 Mattingly: Okay, it's reading 1.2 - about 1.3, I guess. We'll leave it at that for a few minutes.

215 14 53 Duke: Can y'all see the Bat Charger current down there, Hank?

215 15 01 Hartsfield: That's affirmative, and it's reading zero now, Charlie.

215 15 06 Duke: Okay. When I started Bat B charge, I was looking at Bat Bus B, and we got a negative amp - looked like to me a negative amps, off-scale, low on Bat B, and then I went to Bat Charger, but that should - but that didn't look right to me, so I stopped. And then I went to Bat Charger and started it and - again, and the bat charger current went up to about 2, which - or so, which looked nominal. The only question was that it looked like a reverse current or something, and - I guess that is true, isn't it, though, when you reverse current into a battery to charge it?

215 15 45 Hartsfield: That's affirmative.

215 15 50 Duke: Okay. So that's nominal? Okay. Thank you.

215 16 12 Hartsfield: Okay, Charlie. What we saw down here, I guess, when you started the - started the charge, it - it looked like that perhaps you hadn't pulled the Bat Relay circuit breaker; then you stopped and then - then it looked normal to us.

215 16 37 Duke: Okay. It's - it was open and the breaker is pulled. Or it's closed now, since the charge is terminated.

215 17 00 Hartsfield: And they also saw some funnies in your data. It looked like the charge started out on Bat A and then it went to Bat B.

215 17 13 Duke: Well, you got to go to the A position to get to B.

215 17 18 Hartsfield: Copy.

[CM transcript restarts.]

215 18 54 Duke (onboard): Okay, I'll give you a normal countdown, Ken.

215 18 57 Mattingly (onboard): All right, sir.

215 18 58 Duke (onboard): Starting at about 35.

215 18 59 Mattingly (onboard): That'd be just fine.

215 19 00 Duke (onboard): Okay.

215 19 06 Mattingly (onboard): Okay, the GDC looks like that's pretty much - but I'm gonna dress it up.

215 19 11 Young (onboard): Att l, Rate 2 (garble).

215 19 15 Mattingly (onboard): Has nothing to do with the uncaged gyro. Okay. Attitude reference. Okay.

215 19 35 Mattingly (onboard): It gimballed that time.

215 19 36 Young (onboard): Two minutes. It's working now.

215 19 37 Mattingly (onboard): Okay. Charlie's got the watches?

215 19 39 Duke (onboard): Yep.

215 19 46 Mattingly (onboard): Okay. We've done everything down to here.

215 19 51 Young (onboard): That's two jets, 17 seconds. IMC.

[Break in CM transcript until 216 17 44.]

215 21 43 Mattingly: Okay, Hank. We're right - unstowing from A-2 into the top of page 3'2 now.

215 21 50 Hartsfield: Okay. Thank you.

215 23 29 Hartsfield: 16, Houston, we got a - an answer to your question about the wrist rings on your suit.

215 23 41 Young: Okay. We're not ready for that answer right now, thank you.

215 23 45 Hartsfield: Okay. Whenever you're ready, holler.

215 23 49 Young: Okay.

215 33 52 Duke: Hank, on the battery compartment, we vented back down to l, and it's back up to about 1 - 1.3 we vented to, and it's back up to about 1.8 now and seems to be stabilized.

215 34 08 Hartsfield: Okay, Charlie. Thank you.

215 35 42 Young: Okay, Houston. We got 5900 pounds in the OPS, and it's regulating at 3.7.

215 35 51 Hartsfield: Roger. Copy 5900 pounds, regulating at 3.7.

215 45 48 Young: We're - Hank we're down to the TV and DAC Prep, and we're just before installing the meter covers.

215 45 56 Hartsfield: Okay. Real good, John. Thank you.

Public Affairs Officer: This is Apollo Control, Houston, at 240 hours, 38 minutes [215:51] Ground Elapsed Time. The crew of Apollo 16 presently going through preparations in the cabin for the Command Module Pilot EVA. Our countdown clock in Mission Control going for hatch open time; we show 2 hours and 16 minutes away now and Apollo 16 is presently at a distance of 180,774 nautical miles away from the Earth, velocity now reading 3,850 feet per second.

215 53 14 Hartsfield: Ken, we'd like to see the turnoff of the SIM bay that's on 3-6 before you turn our data off.

215 53 29 Mattingly: Okay. Understand; the SIM bay turnoff on 3-6 before we turn data off.

215 53 35 Hartsfield: Roger. And we'll need that data switch - the S-Band Aux TV switch in SCI in order to see the data. And we have some additions to that turnoff, too. Whenever you're ready to do some of those, I'll call them out to you.

215 53 53 Mattingly: Okay.

215 53 56 Hartsfield: Okay. We want the Mapping Camera, Off; the Gamma Ray, Off; and we want to verify that the Mass Spec, even though we don't have it, we want to verify that the Mass Spec experiment is Off, and the Ion Source is Off; Laser Altimeter, Off; and Image Motion, Off.

215 54 38 Hartsfield: And all of those items are in addition to the ones that are listed on page 3-6.

215 54 49 Mattingly: Okay, that's where they'll go, on page B-6.

215 54 53 Hartsfield: Okay.

Public Affairs Officer: This is Apollo Control, Houston, at 240 hours, 46 minutes [215:59], Ground Elapsed Time, very little discussion with the crew of Apollo 16. Since the crew is presently going through preparations for the Command Module Pilot's trip outside the spacecraft. We show Apollo 16 at a distance away from [Earth] of l80,489 nautical miles, velocity now reads 3,854 feet per second. Continuing to monitor, this is Apollo Control, Houston.

216 02 18 Hartsfield: 16, Houston. Could you give us a check on the battery compartment now?

216 02 53 Mattingly: Okay, it's up to 2.0, just a little higher than it was last time.

216 02 58 Hartsfield: Roger. 2.0.

Public Affairs Officer: This is Apollo Control, Houston, at 240 hours, 49 minutes [216:02] Ground Elapsed Time, The discussion we've had with regard to the batteries, we're talking about entry batteries, and exploring the possibility of one of the 3 - we do monitor batteries A and B, but not battery C via telemetry, however, from our discussion here, is centered around data not covered via telemetry. Each battery has 20 cells, much like a car battery but with check valves rather than caps for each cell. Right now we don't believe that that we have a problem with any one of these cells, but we're exploring that kind of possibility with the pressure built up. It could indicate the possibility of one of the cells - one of the batteries, could be venting. I repeat, we have no reason to believe that right now, but we're exploring that with the crew of Apollo 16. The principle concern does not deal with battery capability, but rather to make sure that battery gas would not be relieving into the cabin, Entry can be safely accomplished on only one of the 3 batteries. We're at 240 hours, 51 minutes [216:04], we now show Apollo 16 at a distance of 180,309 nautical miles away from the Earth and travelling at a speed of 385,7 feet per second.

216 13 38 Young: Okay, Hank. We're on the bottom of page 3-4, and we're taking the couch out now.

216 13 44 Hartsfield: Roger. Copy.

Public Affairs Officer: This is Apollo Control, Houston, 241 hours Ground Elapsed Time [216:13]. That report indicated that the crew of Apollo 16 is now removing the center couch in preparation of - for the EVA. We presently show Apollo 16 at a distance from Earth of 179,956 nautical miles, velocity now reads 3,862 feet per second.

[CM transcript restarts.]

216 17 44 Duke (onboard): What about this urine bag? We gonna save this? You want me to put it in the jett bag?

216 17 52 Young (onboard): Don't need it.

216 17 53 Duke (onboard): Huh?

216 17 54 Young (onboard): Don't need it.

216 17 55 Duke (onboard): Well, we might need a trash bag, John.

216 17 58 Young (onboard): That ain't true, Charlie.

216 18 06 Mattingly (onboard): (Garble) What about (garble).

216 18 08 Young (onboard): Okay. It says - "Stow under Duke (onboard): couch" - It says, "Open EVA umbilical bags."

216 18 16 Hartsfield: 16, Houston. When you get around to - prior to suit donning, we recommend that you lubricate those wrist rings using the maintenance kit that's stored in A-8. And you might try to work some of that lube in around the locking rings and work the ring several times to try to free them up a little bit - the locking rings.

216 18 41 Young (onboard): Sir?

216 18 42 Mattingly (onboard): (Garble).

216 18 43 Duke: Okay, Hank. We've already done that ...

216 18 45 Young (onboard): Okay. "Open EVA umbilical bag" ...

216 18 46 Duke: ... we did that when we doffed the suits yesterday as best we could.

216 18 48 Hartsfield: Okay.

216 18 48 Young (onboard): ... "Unsnap the top strap and remove the spacecraft EVA umbilical all the way to the second tiedown strap" ...

216 18 52 Duke: I'm not sure it had much effect, but we did it.

216 18 56 Young (onboard): ... (garble) "Unsnap the second tiedown strap."

[Break in CM transcript until 219 21 47.]

216 19 23 Hartsfield: Charlie, did you do the full lubing and cleaning, including the zippers, in accordance with the instructions in the maintenance kit?

216 19 33 Duke: Yes, sir. Just like we done it on the surface. We did the zippers, all of the O-rings, the neck rings, the wrist rings, and it seems to me, Hank, it's really not where the O-ring is. It's in the sliding part between the suit part and the locking part of it. It's stiff. You could see dust down in there, but you can't get it out too well.

216 19 57 Hartsfield: Roger. Copy. Only thing we could recommend there, which I'm sure you've already done, is just sock it a few times - see if you can free it up.

216 20 11 Duke: Okay. Thank you, sir. I think they'll be okay.

216 34 01 Hartsfield: 16, Houston. We'd like to get another read-out on the battery compartment, and we suggest you leave the meter setting there so we can read it during the EVA if we have to - or you can read it.

216 34 12 Young: We're leaving it set.

216 34 27 Young: 2.15.

216 34 29 Hartsfield: Roger. At 2.15.

216 34 31 Young: Get - Roger.

Public Affairs Officer: This is Apollo Control Houston. At 241 hours, 21 minutes [216:34] Ground Elapsed Time. The Science Staff Support room has just reported that the sub-satellite has been activated and it's working fine. The sub-satellite in orbit around the Moon. We now show Apollo 16 at 179,143 nautical miles away from the Earth and travelling at a speed of 38,075 [sic] feet per second.

216 37 02 Hartsfield: Apollo 16, Houston. For your information, we just commanded the Sub-sat on, and it's alive and well.

216 37 12 Young: Good show.

216 40 33 Young: Okay Houston, we're just about to start with the - with the SIM bay turnoff here on Page 3-6, and we'll do those additions that you talked about.

216 40 45 Hartsfield: Okay. Good show.

216 41 27 Hartsfield: And, 16, before you start your suit donning, we'd like to vent that battery compartment one more time down to about 1 volt.

216 41 38 Young: Okay. We'll do that.

216 44 41 Young: Okay, Houston. We're on page 3-6, and we're starting our PGA donning right now.

216 44 48 Hartsfield: Roger.

216 44 53 Young: I think we've made up 45 minutes on our late wakeup - hour late wakeup this morning.

216 45 00 Hartsfield: Great. And we're standing by for that battery compartment reading.

216 45 36 Young: Okay. Charlie just superbly vented it to 1.0.

216 45 41 Hartsfield: Roger. 1.0.

216 45 45 Young: Right.

217 00 40 Young: Okay. Ken's completed donning his suit now, and Charlie's going to start on his.

217 00 45 Hartsfield: Roger. Copy, John.

217 02 49 Mattingly: Hello, Henry. You still there?

217 02 52 Hartsfield: Roger, Ken. How do you read?

217 02 56 Mattingly: Loud and clear.

217 02 58 Hartsfield: Okay. You're loud and clear.

217 03 03 Mattingly: Okay.

Public Affairs Officer: This is Apollo Control Houston. At 241 hours, 49 minutes [217:02] Ground Elapsed Time. That was Ken Mattingly calling Hank Hartsfield, our Capcom here in Mission Control. Mattingly [2[is] now scheduled to move outside the spacecraft in one hour and five minutes. Earlier John Young had reported that Ken Mattingly had completed the donning of his space suit and that Lunar Module Pilot, Charles Duke, was in the process of donning his space suit. We show Apollo 16 at a distance of 178,085 nautical miles away from the Earth and travelling at a speed of 3,891 feet per second.

217 04 53 Mattingly: Hank, instead of making this maneuver to the EVA attitude at 242:00, suppose we do it as soon as we finish suit donning.

217 05 07 Hartsfield: Roger, Ken. You can do that whenever you're ready. When you do do the maneuver, we'd like for you to go Wide on the High Gain.

217 05 17 Mattingly: Okay.

217 06 34 Hartsfield: And, Ken, in regard to the - the attitude and angle changes, - the only thing on your EVA cue card that - that I saw that required changing was the High-Gain angles.

217 06 44 Mattingly: Okay. Stand by. Stand by. Stand by, please.

217 08 16 Mattingly: Okay, Hank. Say again what you had to say about the attitudes now, please.

217 08 20 Hartsfield: Roger. I read up the new attitudes and High-Gain angles to Charlie, and he was going to change the checklist and the cue card; and I just wanted to say that the only place on the cue cards I see that needs a change is the back side of your EVA card, the High-Gain angles right by the 50 18.

217 08 41 Mattingly: Okay. I've got that, and - it was minus 24 and 220; and now we want something different, huh?

217 08 55 Hartsfield: That's affirmative.

217 09 02 Mattingly: Okay. Now I've got a minus 34 and 218. Shouldn't that track throughout the maneuver? It used to. The old angles did.

217 09 22 Hartsfield: We hope it'll work in Auto TRACK, Ken, but this is just a precaution. We've been having a little trouble with that High Gain.

217 09 32 Mattingly: Okay. Thank you, sir.

217 10 05 Mattingly: And, Hank, on that - on that battery thing, it's back up to about 1.6 now. It came right up to 1.5, which it - that you're - that means that it's up to 1.6. Do you want us to vent that thing during the EVA to keep from getting excessive pressure in that chamber, while we have the cabin depressed?

217 10 29 Hartsfield: Negative, Ken. We'd like to watch it awhile.

217 10 36 Mattingly: Okay. That battery compartment will take it when we get the cabin down, right? Or at least relieve through the cabin?

217 10 53 Hartsfield: That manifold should take 200 psi, Ken. That was what it was qual'ed at, and the burst pressure is 600.

217 11 03 Mattingly: Okay. That's fine. You guys think there's a relief valve on one of those batteries that's (garble)?

217 11 11 Hartsfield: We're not - we're not sure. We kind of think that may be what's happening.

217 11 18 Mattingly: Okay. Do you have any evidence yet as to which battery?

217 11 24 Hartsfield: Negative.

217 11 27 Mattingly: Okay. Thank you.

217 11 46 Hartsfield: All those batteries are manifolded together, and all the voltages look normal. If we do drop a cell on one of the batteries, we should be able to pick that up.

217 12 00 Mattingly: Roger.

217 14 02 Mattingly: Okay. Charlie's suited.

217 14 07 Hartsfield: Roger.

Public Affairs Officer: This is Apollo Control, Houston at 242 hours [217:13] Ground Elapsed Time, that was Ken Mattingly reporting that Lunar Module pilot Charles Duke has suited. We're 54 minutes away now from time of hatch open. We show Apollo 16 at an altitude of 177,691 nautical miles and with a velocity of 3,898 feet per second.

217 18 52 Hartsfield: 16, Houston. Go Wide on the High Gain.

217 19 00 Duke: Hank, I just hit the yaw knob. What are the settings in our present attitude?

217 19 13 Hartsfield: Pitch minus 14, Yaw 58.

217 19 20 Duke: Okay. We got it.

217 19 53 Hartsfield: 16, we'd like to stay Wide and Manual in the High Gain.

217 20 05 Duke: Okay. You've got it.

217 20 07 Mattingly: Are you going to want that during the EVA, Hank?

217 20 20 Hartsfield: That's affirmative, and we'll call it when we start the maneuver.

217 20 28 Mattingly: Okay. Wide gives you enough margin on the TV?

217 20 51 Mattingly: That was really a question, Hank. (Laughing) I didn't mean it as a statement.

217 20 56 Hartsfield: Okay. What's going to happen is: when we do get in attitude, we can bring it back to Auto and get it locked up; but we will need the Narrow Beam.

217 21 06 Mattingly: Okay. Because that's a - that's going to be a very difficult thing to try and tweak up in a hard suit.

217 21 12 Hartsfield: Roger. Understand.

217 23 13 Hartsfield: 16, Houston. We're noticing that the glycol evap out temp is coming on down, and we need to adjust that mixing valve in. But rather than crawling under there and doing that right now, what we want to do is get you to take the Temp In switch from Manual up to Auto, and we'll give you a call when to put it back in Manual and see if that will cut it.

217 23 39 Mattingly: Okay. Is that going to have enough time delay - on your call that's going to - I guess - I guess I'm concerned about making it worse.

217 23 52 Hartsfield: Well, the temperature's dropping. We're going to have to adjust it one way or the other, Ken, and we're going to lead it.

217 24 01 Mattingly: Okay. We can always go back and do it manually if it doesn't work. All right. Do you want to do that - let's do it right now before our maneuver and make sure we don't lose comm in the middle of it.

217 24 09 Hartsfield: That's right. We'd like to do it now ...

217 24 11 Mattingly: Going to Auto -

217 24 12 Mattingly: Mark.

217 24 13 Hartsfield: Okay.

217 25 27 Hartsfield: Ken, I know this is going to sound funny, but it looks like that mixing valve is working now. It didn't go up like we thought it would.

217 25 41 Mattingly: Okay. But we're going to have to make a configuration setting before we start the EVA, because we won't be able to get to it then. If we can find a place where it looks good, I'd like to leave it in Manual throughout the EVA, and we can try the Auto feature some other time.

217 26 01 Hartsfield: Okay. We'd like to put the switch back to Manual and maneuver to the EVA attitude, and we'll take a look when we get good comm there.

217 26 12 Mattingly: Okay. The Temp In switch is in Manual, and I'm going to the EVA attitude.

217 26 17 Hartsfield: Roger.

217 28 17 Mattingly: Okay. Suiting is completed.

217 28 21 Hartsfield: Roger. Understand, suiting completed.

217 30 27 Hartsfield: 16, Omni Delta.

217 32 08 Duke: Hank, we'll be switching comm here again for a minute.

217 32 12 Hartsfield: Okay.

217 32 29 Hartsfield: 16; if you read, Omni Alpha.

217 32 38 Duke: You got it.

217 32 40 Hartsfield: Thank you.

217 36 19 Hartsfield: Omni Charlie.

217 37 06 Hartsfield: Apollo 16, if you read, Omni Charlie.

217 37 36 Hartsfield: Apollo 16, Omni Charlie.

217 38 54 Mattingly: Going Omni Bravo now.

217 38 57 Hartsfield: Okay. We're reading you again.

217 39 04 Young: Roger. Loud and clear.

217 39 26 Young: Okay. We're down to Page 3-8 on the pressure gage static check we're running through now, Hank.

217 39 32 Hartsfield: Okay.

217 41 19 Hartsfield: Apollo 16, Houston. Could you acquire with your High Gain?

217 41 28 Duke: Didn't work.

217 41 55 Duke: Okay, Hank. How's that in - Wide Beam?

217 42 02 Hartsfield: Okay. Would you go Reacq and Narrow?

217 42 12 Duke: Okay. You have it. Reacq and Narrow. Good signal strength.

217 42 19 Hartsfield: Okay. It looks good, Charlie.

Public Affairs Officer: This is Apollo Control Houston at 242 hours, 29 minutes [217:42] Ground Elapsed Time. The Apollo 16 spacecraft has now been maneuvered to a proper EVA attitude and we have acquired with the High Gain Antenna. We show 25 minutes remaining on our countdown clock to time of hatch open, and we show Apollo 16 at a distance of 176,589 nautical miles away from the Earth and travelling at a speed of 39015 [sic] feet per second. This is Apollo Control Houston.

217 50 18 Mattingly: I have Vox now. Vox Sensitivity is up. Pad Comm's Off. S-Band's T/R. Audio mode is Normal. [vox] T/R. AM's Off.

217 50 42 Hartsfield: We're reading you, Ken. And for your information, the mixing valve setting is good.

217 50 49 Mattingly: Okay. Thank you, sir.

217 51 03 Mattingly: Are you going to check - going to check out the TV? Charlie, did you get that? Okay. Let me see if I got a picture here. Okay. I'm ahead with this. You got a - got anything on there yet? You got a picture? You got a - the monitor's working, isn't it? Bet that'll help. (Laughing) Okay. Okay. That is the end of it. Get your monitor adjusted so it shows you what you'd like. I'll open it up so you can see something inside, and I'll close it down before we go outside. Take the zoom all the way out. Is that all right? Okay. Set the zoom back to where it was supposed to be. What's the zoom setting? Zoom. All right. Okay. Houston, are you getting a picture?

217 52 31 Hartsfield: That's affirmative.

217 52 34 Mattingly: Okay. We won't worry about dressing it up till we get outside.

217 52 40 Hartsfield: Okay.

217 52 48 Mattingly: Wait a minute, John. Let me put this back up. Watch your head there. Big thing.

Public Affairs Officer: This is Apollo Control Houston. 242 hours, 39 minutes [217:52] Ground Elapsed Time. Command Module Pilot Ken Mattingly now checking out the TV system in preparation for the EVA.

217 53 08 Mattingly: Okay. We got the TV power off, did you say? Okay. And the camera's back in place. All right. Okay. We've been doing that. You might check them. Be sure you can.

217 53 21 Young: Okay, Houston. You read me okay on the Cdr's loop?

217 53 25 Hartsfield: Houston's reading you five by five, John.

217 53 31 Young: Okay.

217 53 43 Mattingly: Pressure Alarm is coming On. I have the warning tone. It's going back Off, and the tone is off.

217 53 59 Mattingly: You can call Verb 49, and it will already be loaded. Yeah. You've got to Pro out of this.

217 54 26 Mattingly: It may be out of attitude, but - Okay (garble). take two Pro's to go to the MEED Attitude. Okay?

217 54 52 Mattingly: Okay, the Repress O2 is about 865.

217 55 10 Mattingly: No, that acts as a supplement to the Surge tank. All right.

217 55 32 Mattingly: Okay. Let me check Noun 351. Okay. The Repress valve is Off. That's verified. That's verified.

Public Affairs Officer: This is Apollo Control Houston at 242 hours, 42 minutes [217:55] Ground Elapsed Time. Apollo 16 now at a distance of 176,093 nautical miles away from the Earth, and travelling at a speed of 3,924 feet per second. The integrity checks for the suit still needs to be completed. We will standby until we have a more definite time for hatch open and pass that along a soon as it comes available.

217 56 26 Mattingly: It is.

217 56 59 Mattingly: Yeah. Can you get this in your ...

217 57 01 Duke: You want me to stuff it in my TSB?

217 57 02 Mattingly: I'll see. I'll see.

217 57 03 Duke: Yeah.

217 57 04 Mattingly: Okay.

217 57 06 Duke: I'll tell you what, I'm gonna put it up here just - I don't want to lose this one.

217 57 29 Mattingly: Okay, that's Flight Plan is stowed in R3.

217 58 12 Mattingly: Okay. I've got it.

217 58 30 Mattingly: Yes, sir. And I have the valve in the open position, and would you verify that that's open. Counter clockwise - No, what does it say on the arrow? Okay. And it's locked.

Public Affairs Officer: Apollo Control Houston at 242 hours, 45 minutes [217:58] Ground Elapsed Time. Our best estimate for hatch open at this point approximately 40 minutes and the countdown clock in Mission Control being reflected to show that hatch open time.

217 59 20 Mattingly: Okay. Wrist tether's out, [vox] stowed. Yep. My hoses are disconnected and stowed. Yes, sir. Interconnect is in. Suit flow is Off, the interconnect is in. It's locked on two sides, and stowed on the strut. I have it. Okay. I've got it in Lo. Okay. It's installed and locked. Nope. That's mine. It's Off. Yes. Okay.

218 01 31 Mattingly: Okay, I've got the adapter plate on.

218 02 29 Mattingly: Yes, sir. And I've unconnected the - disconnected the OPS hose. They're snapped. They're installed. Yes, sir. Attached.

218 03 25 Mattingly: Just a little bit easier.

Public Affairs Officer: This is Apollo Control Houston, at 242 hours, 49 minutes [218:02]Ground Elapsed Time, Ken Mattingly has just connected the OPS hose with the assistance of Lunar Module Pilot Charles Duke. We show Apollo 16 at a distance of 175,810 nautical miles from Earth.

218 04 57 Mattingly: Am I getting that twisted? I want to go over the umbilical. That's it, thank you. Thank you. Okay. The OPS is installed, the gas connector is installed, and it's locked. Yes, sir. Yep. If you can. May have to disconnect this thing to get it down there. All right, thank you. It'll stay. Yeah, that's nice. Oh, I'm sorry, I didn't hear you. Okay. O2 flow is coming On.

218 05 02 Mattingly: Mark. I have flow. Yes, sir. But - Will you watch cabin pressure for me? Want me to read those while you guys do the integrity check? Okay. Let me get up here. You want me to read those things while you - you have both hands -

218 06 02 Mattingly: Hey, where's - where's the other - Here's your helmet, where's my - laid it down. Okay. I'll get it out for y'all. Here's yours, John. Those are your gloves, Charlie, or - okay. Okay, my gloves should be down there to your right somewhere, I think. Yeah, (garble) get them out of the way. Okay. All right, thank you.

Public Affairs Officer: This is Apollo Control Houston at 242 hours and 53 minutes [218:06] Ground Elapsed Time. We're about 30 minutes away now from hatch open. It's taking a little bit longer than had originally been anticipated to go through the checklist procedures in getting ready for the Command Module Pilots EVA. We're at 242 hours, 54 minutes Ground Elapsed Time. We show Apollo 16 at a distance of 175,657 nautical miles.

218 06 15 Mattingly: Yes, sir. Okay. Get this little strap on here, and we'll be all set. Okay. I will not steal the pen. Okay. Where is it? All right. Okay. Around here, you mean? That looks clear in the back. Put your head over here a second. That looks clear. That looks good. Yeah, that's - The little skirt around the back gets in the way (garble). I didn't hear it click. No. Want to take the LEWA off so we can get more pressure on it? Goes on so much easier than it comes off. That sounded good. Okay. That about in the center for you? Okay. Lock it. That's good. Covered and all buttoned up. Hey, that was easy.

218 09 46 Young: Okay, Houston. Charlie's donning his helmet and gloves with the - for the suit integrity check we're about to get into here for Cdr/LMP.

218 09 57 Hartsfield: Roger. Copy.

218 10 03 Mattingly: Hey, that's really nice. Okay. I got two locked. That one's locked, and your helmet is locked. Got one, two. Gas connectors are locked. Okay. All right, John. Okay. I'll take the checklist. I'll hold it out of the way for you. That'll be temporary, but as soon as we get the hatch open, that wire will get taut. Why don't you loop it under that little dog [?] by the - the window frame there?

218 11 20 Mattingly: Houston, battery compartment's 1.9. You happy with that now?

218 11 29 Hartsfield: Roger. We're happy with that, Ken.

218 11 33 Mattingly: Okay. Thank you. Okay. You got your alignments checked? Okay. And you got the gloves. They're in and they're locked. Okay. Both of you checked the connections, comm, oxygen and gas connector plugs. All locked? Okay. John, if you'll go to Vox. Okay. And let 's try the sensitivity; that's probably gonna be pretty good. Try it with the ground and see if ...

218 12 03 Young: Houston, how do you read me on Vox? Over.

218 12 09 Hartsfield: Go ahead.

218 12 14 Young: Houston, this is Apollo 16. How do you read on Vox? Over.

218 12 18 Hartsfield: Roger. Reading you - reading you loud and clear, John.

218 12 22 Young: Okay.

218 12 24 Mattingly: Okay. And the last - last - The next thing is to stow the checklists. Okay, do you have a suit circuit integrity check on there? I don't think you do on the cue card. It's on the panel.

218 12 38 Young: Over behind the (garble).

218 12 39 Mattingly: Okay. Panel 380. Suit Circuit Return valve to closed.

218 12 43 Young: Okay. Suit Circuit Return valve to close?

218 12 55 Mattingly: Yes, sir. Push in.

218 12 57 Young: Okay. It's in.

218 12 58 Mattingly: Okay. Panel 7, Direct O2 close: clockwise.

218 13 04 Young: Panel 7.

218 13 06 Mattingly: Direct O2 . Make sure it's closed.

218 13 09 Young: Okay. It's closed.

218 13 10 Mattingly: Okay. The Suit Pressure indicator is reading 5.2 - it's about 5. I'm gonna bleed this a little bit. Okay, Houston. I have the Equalisation Valve, Open a little bit. Will you keep an eye on the cabin pressure for us, please?

218 13 35 Hartsfield: Roger. Would you vent it down to about 5.17 It's up now.

218 13 41 Mattingly: Okay. I've got the Valve, Open. Would you keep an eye on the cabin pressure, please?

218 13 45 Hartsfield: Will do.

218 13 51 Mattingly: Okay. The flow is normal; suit pressure, okay. We're ready to go on to suit circuit integrity check. And Suit Test valve to Press.

218 14 05 Young: Suit Test valve to Press. Going to Press.

218 14 10 Mattingly: Okay. You got it in Pressure?

218 14 15 Young: In Pressure.

218 14 16 Mattingly: All right. Direct O2 flows Open.

218 14 19 Young: Okay. We're Open in Direct O2 .

218 14 20 Mattingly: Okay. You're gonna start to pressurize now. Okay. You might - at - give it another psi, and then cycle the Suit Circuit Return.

218 14 32 Young: Okay.

218 14 33 Mattingly: You have a Master Alarm; that's Hi O2 Flow.

218 14 36 Young: Okay.

218 14 40 Mattingly: I'll get it off, Charlie. I'm putting the Caution and Warning back to normal.

218 14 48 Hartsfield: Ken, you're down to 5 psi on the cabin.

218 14 54 Mattingly: Okay. And the valve is closed.

218 14 58 Young: What's my suit pressure, Charlie?

218 15 00 Mattingly: You're at - You should have about 1.2 Delta-P.

218 15 09 Young: What does it say on the gage over there?

218 15 11 Duke: 0.2 Delta-P.

218 15 17 Young: 0.2 Direct O2 . I want to get it up to -

218 15 19 Mattingly: Okay, why don't you cycle the Suit Circuit Return valve ?

218 15 25 Young: Okay.

218 15 37 Young: Cycle once.

218 15 40 Mattingly: Okay, that's good. It's back in.

218 15 45 Young: It's back in.

218 15 46 Mattingly: All right.

218 15 47 Young: Cycled twice.

218 15 57 Mattingly: Your suit pressure is still only about 1.5; have to turn that thing up some to get it a little ...

218 16 02 Young: Okay, I'll get it up there.

218 16 15 Mattingly: And, Hank, it looks like we're gonna be about 10 minutes late on hatch open.

218 16 20 Hartsfield: Roger.

218 16 33 Mattingly: Okay, you should have 2 psi.

218 16 35 Young: Okay. Call it off.

218 16 38 Mattingly: Okay.

218 16 39 Young: Call it off to me, Charlie.

218 16 43 Duke: When do you want me to shut the Direct O2 off, Ken?

218 16 45 Mattingly: About 4.

218 16 47 Duke: Okay.

218 17 02 Mattingly: Okay, why don't you turn the Direct O2 off?

218 17 05 Duke: Direct O2's off.

218 17 07 Mattingly: Okay. Okay, it - it ought to get up to almost 4.5.

218 17 42 Mattingly: Have full pressure now? What's your suit pressure?

218 17 47 Young: 4.4's where it went last time.

218 17 59 Young: Yeah, that's where it regulates to, right there, about 4.5.

218 18 03 Mattingly: And the flow should start to drop here.

218 18 29 Duke: How's your suit pressure? Is it stable?

218 18 33 Young: Okay, Houston, how long does it take before the flow starts to drop on this integrity check?

218 18 47 Hartsfield: Stand by, John.

218 18 53 Mattingly: Get you a little Delta-P there, probably help.

218 19 03 Mattingly: There you go.

218 19 04 Duke: Coming down.

218 19 08 Mattingly: That's all it needed was that bump, that little bit. Okay, I'm turning my flow off -

218 19 14 Duke: Mark.

218 19 15 Young: Okay -

218 19 16 Duke: Okay - I -

218 19 18 Mattingly: Okay, and my check is that the flow remains stable and low.

218 19 23 Young: I wouldn't consider it low, Ken; it's climbing right back up.

218 19 27 Mattingly: Less than 0.97. In other words, it doesn't peg.

218 19 38 Young: Oh, the rascal.

218 19 41 Mattingly: It stopped.

218 19 42 Young: 0.7. Okay, the flow is holding right now at 0.72 and - on me and Charlie. That ought to do it.

218 19 55 Mattingly: Okay. That's (garble) good.

218 19 56 Hartsfield: Roger; that sounds good, John.

218 19 58 Crew: (Coughing)

218 20 00 Young: Now it's up to 0.8. Now it's pegged; for some reason, it just pegged.

218 20 04 Mattingly: How about the cyclic accumulator? Just a second.

218 20 10 Young: Yeah, that's probably what it was, 8, 9, 10 - Yep, there's a cyclic accumulator; hmm. Okay.

218 20 20 Hartsfield: Roger; we confirm that down here.

218 20 21 Mattingly: (Garble). Why don't you just go to Depress on the Suit Test valve?

218 20 26 Young: Okay. Going to Depress.

218 20 36 Mattingly: Okay, you'll come down pretty slow (garble). ...

218 20 41 Young: I won't come down at all, unless I can find the valve. There we go.

218 20 57 Mattingly: You're in Depress.

218 21 14 Young: I tell you, it's pretty good for these old suits to be holding air with all this Moon dust in them, Houston.

218 21 19 Hartsfield: Roger; we copy.

Public Affairs Officer: That was John Young making that call out. We're at 243 hours, 7 minutes [218:20] Ground Elapsed Time. We show Apollo 16 at an altitude of 175,129 nautical miles.

218 21 47 Mattingly: Okay. I got my Purge valve pin pulled. And my Purge valve is activated to LOW. The Diverter valves are rechecked into vertical. We get your suits back down and get the systems stable, we'll go to the EVA card.

218 22 08 Duke: Okay.

218 22 14 Young: I'm 2.8 now and coming down.

218 22 23 Mattingly: Well, it's comforting to know that there's some sunlight out there. When we - when we - vented the cabin, some of the particles went out, and you could see the sunlight out on them. Otherwise, it's just black as all get out.

218 22 44 Young: Hey, you want to open that black bag down there and put a vent on it?

218 22 47 Duke: (Garble).

218 22 51 Young: (Garble) crack it. Yeah.

218 22 58 Mattingly: You got it loose? I can get it. I'll get it.

218 23 07 Duke: Okay.

218 23 08 Mattingly: Did you snap it, Charlie? I - I got bare hands here. I can do that. Okay. Okay. Can you - Snap's all the way in the back. Oh, you did vent it.

218 23 33 Duke: Wait, I need my helmet (laughter).

218 23 37 Young: Okay. Are we in this card here?

218 23 41 Mattingly: Okay. You back to normal yet?

218 23 42 Young: Not quite.

218 23 45 Mattingly: That, - that card picks up as soon as I get this thing back to - get you back to normal on this ...

218 23 49 Young: Right, right.

218 23 50 Mattingly: ... configuration.

218 23 51 Young: I remember that now.

218 23 55 Mattingly: Now I'm turning my O2 flow back on. Houston, can keep an eye on the cabin pressure for us, if you will, please.

218 24 02 Hartsfield: Roger. We're up to about 5.3, 5.4 now.

218 24 07 Mattingly: Okay. I just turned my flow back on, so it'll start to rise again.

218 24 29 Mattingly: Got about three-quarters of a psi to go. Am I in the way?

218 24 35 Young: No, it's no problem.

218 24 37 Mattingly: Okay.

Public Affairs Officer: This is Apollo Control, Houston, at 243 hours, 24 minutes [218:25]Ground Elapsed Time. Ken Mattingly now in the process of ...

218 25 05 Mattingly: (Garble) and get us little head start so we don't get interrupted on our check.

Public Affairs Officer: ... donning his helmet and gloves at this time. We show Apollo 16 at a distance of 174 983 nautical miles.

218 25 38 Mattingly: Okay, your equalization valve is closed.

218 25 44 Young: All righty. We're down now, aren't we?

218 25 49 Mattingly: Yeah, that's good.

218 25 50 Duke: Okay.

218 25 51 Young: Okay. I'm going to Suit Test valve to Off.

218 26 00 Mattingly: Okay, you verify that the Demand Regs are in Both.

218 26 04 Young: Cabin Regs are in Both - I mean, the Demand Regs.

218 26 08 Mattingly: Okay. I'm going to put the cue - put this in the stowage locker - done with him. Want it turned around the other way?

218 26 17 Young: Okay.

218 26 30 Mattingly: Those rings won't quite fit. Well, we're going to need it during the - I'm going to put it right in here. How's that? Okay, John, I'm ready to press on.

218 26 50 Young: Okay. Beginning of the card. Don helmet and lock.

218 26 54 Mattingly: Yes, sir. Helmet's coming on. Yes.

218 26 59 Young: Roger. Grab this over here.

218 27 15 Mattingly: That should have it.

218 27 16 Young: You - you still got a little of your - Wait a minute, you get it? That's a good thing. I'll hold it down. That do it?

218 27 43 Mattingly: Okay, it's locked.

218 27 45 Young: Okay, I can verify that.

218 27 47 Mattingly: And these stripes ought to line up pretty good, do they? Can you see under the ...

218 27 51 Young: Hey, your lock stripe is to the - about - you got to come this way - the other way. Whoa, too much. There you go, perfect.

218 28 02 Mattingly: Okay. Give me the thermal stuff down there, Charlie.

218 28 11 Duke: That's good.

218 28 12 Mattingly: Okay.

218 28 13 Young: Okay, don wrist tether, ring forward.

218 28 17 Mattingly: I've got it on my glove.

218 28 19 Young: Okay. Don LEVA - that's done - Verify alignment. Don the comfort gloves.

218 28 25 Mattingly: Okay.

218 28 27 Young: Don one glove and lock. Okay, following that, panel 603, EVA O2, Off; and then don the other glove and lock it.

218 28 39 Mattingly: Okay. All right, thank you.

218 28 55 Hartsfield: 16, Houston. Like to get a voice check with Charlie.

218 29 03 Young: Charlie, talk to them, Charlie.

218 29 05 Duke: I'm reading everybody, Hank. How me?

218 29 07 Hartsfield: Okay. Reading you five by five.

218 29 12 Mattingly: Okay. I've got the other ...

218 29 13 Duke: Okay, I'm keying.

218 29 14 Mattingly: ... glove on and locked.

218 29 16 Young: 0kay. All right, panel EVA O2, On. Let me verify those locks again.

218 29 21 Mattingly: All right, sir.

218 29 24 Young: Okay. Okay. Verified.

218 29 27 Mattingly: Okay. My other glove, Charlie?

218 29 30 Duke: Here you go.

218 29 32 Mattingly: Thank you, sir.

218 29 43 Mattingly: Okay.

218 29 44 Young: Here comes the right - Well, I'll turn it Off.

218 29 51 Mattingly: My flow is Off. The glove is coming on.

218 30 05 Mattingly: And that looks locked.

218 30 06 Young: Yeah, it's locked.

218 30 07 Mattingly: Okay, the flow is coming back On. Next?

218 30 13 Young: Modulate On and Off as required to pressurize the CMP.

218 30 17 Mattingly: Okay, we're coming up.

218 30 19 Young: Cuff gage 3.7 to 4.0. And then you should get the panel 604 Suit Pressure ALARM, On.

218 30 27 Mattingly: Okay, I'll turn the switch On.

218 30 28 Young: Yeah.

218 30 29 Mattingly: I have a tone at this time.

218 30 30 Young: Verify the tone's off.

218 30 32 Mattingly: Yeah. Tone will come off when the pressure comes up.

218 30 35 Young: Right.

218 30 38 Mattingly: How am I doing on the instrument panel, Charlie?

218 30 40 Duke: Fine.

218 30 42 Mattingly: Okay.

218 31 00 Mattingly: The tone goes off at 3.2 and climbing.

218 31 03 Young: Okay. Fine. Okay, on Panel 10, adjust CMP's master volume, if required.

218 31 12 Mattingly: I can hear you guys just fine. Yeah, it's perfect.

218 31 16 Young: Great. Duke: panel 351, Emergency Cabin Pressure to Off.

218 31 24 Mattingly: How's that cabin pressure doing, I wonder?

218 31 27 Young: I don't know. Houston, how's the cabin ...

218 31 29 Hartsfield: Roger. It's 5.6.

218 31 33 Mattingly: Okay.

218 31 34 Young: Okay. We'll make it.

218 31 38 Mattingly: Vertical is Off. Vertically down is Off, isn't it? Isn't it?

218 31 51 Mattingly: Okay. Don't I do a suit integrity check, John?

218 31 53 Young: Yeah.

218 31 54 Mattingly: I'm sorry, I didn't turn the flow Off. Okay, my flow is coming Off. Nope, it's going up the (garble) there.

218 32 06 Young: Wait a minute. You've got to do the EVA warning tone check first.

218 32 08 Mattingly: Okay. The - All right - read me the steps.

218 32 13 Young: Mattingly: monitor cuff gage, set the Purge valve to Hi.

218 32 21 Young: Let me do that for you.

218 32 29 Young: And verify the EVA tone ...

218 32 31 Mattingly: Okay, it's Hi.

218 32 32 Young: Okay, verify the EVA tone comes on at 3.1 to 3.4.

218 32 36 Mattingly: Comes on at 3.2.

218 32 37 Young: Comes on at 3.2. Okay. Then Purge valve to close.

218 32 40 Mattingly: Okay, I'm going to have to - have some - I've got this purge valve stuffed in my pocket, because it came out of that container.

218 32 47 Young: Right.

218 32 48 Mattingly: Going to have to get the soft suit to get it.

218 33 18 Hartsfield: Ken, your cabin's up to 5.8. We suggest a vent.

218 33 23 Mattingly: Okay, that's going to Vent. Okay, you're at Vent.

218 33 38 Hartsfield: Roger.

218 33 42 Mattingly: Thank you, Hank. You've got to push it in first.

218 33 48 Young: Oh, yeah.

218 33 53 Mattingly: I tell you what. Put it in to Lo first, and let me build up my pressure slow.

218 33 59 Young: That way Lo?

218 34 01 Mattingly: Yeah (garble). ...

218 34 02 Hartsfield: Okay, Ken. Would you close the ...

218 34 04 Mattingly: ... (garble) Now you can close it.

218 34 05 Hartsfield: ... side hatch dump?

218 34 10 Mattingly: Okay. Thank you, Houston.

218 34 13 Young: Okay, it's closed.

218 34 15 Mattingly: Okay.

218 34 16 Young: Okay, your pin's in, Ken.

218 34 17 Mattingly: Okay, is it set on Hi flow?

218 34 20 Young: Okay, going back to Hi.

218 34 24 Mattingly: Hi flow is counter clockwise.

218 34 34 Young: Okay, it's on Hi flow.

218 34 38 Mattingly: What's the Master Alarm for?

218 34 39 Young: 02 Flow Hi.

218 34 40 Mattingly: Okay, maybe I - How low is the cabin?

218 34 43 Young: Huh?

218 34 45 Mattingly: Can you see the cabin pressure?

218 34 46 Hartsfield: You're at 4.7.

218 34 49 Young: 4.7.

218 34 50 Mattingly: Okay, that's why you got the Hi O2 Flow.

218 34 53 Young: Why?

218 34 54 Mattingly: Your cabin's at 4.7. I vented the cabin - below where the regs go.

218 35 01 Hartsfield: Roger; we verify cabin reg.

218 35 02 Young: (Garble) shut off.

218 35 03 Mattingly: You've got the emergency regs shut off.

218 35 05 Young: Okay.

218 35 06 Mattingly: You don't have the main regs shut off because there's no switch on them.

218 35 10 Young: Okay. Okay, well, let's press on. Integrity check. Panel 603 EVA O2 to Off.

218 35 19 Mattingly: Okay. Excuse - There we go. Okay. See what I'm hung up on, Charlie?

218 35 36 Mattingly: Okay. Thank you.

218 35 39 Young: Monitor - monitor cuff gage to verify PCV closes.

218 35 42 Mattingly: Okay.

218 35 43 Young: Monitor pressure decay for one minute. Verify at less than 0.8.

218 35 49 Mattingly: Okay, that's - I got the tone.

218 35 51 Young: Okay, there's a mark on a minute.

218 35 57 Mattingly: Falling. It started at 3.65, and it's slowly coming down.

218 36 23 Young: Okay, can you hear a crossfeed on it?

218 36 26 Mattingly: Okay, I'm gonna turn the oxygen hack on.

218 36 30 Young: Okay, Ken, that was - what was it? This looks pretty good right now.

218 36 33 Mattingly: Huh?

218 36 34 Young: How much was it?

218 36 36 Mattingly: 3.6.

218 36 37 Young: Okay, fine. You got a tight suit.

218 36 40 Mattingly: Tone is on. I mean the EVA oxygen on panel 603 is On.

218 36 45 Young: Okay.

218 36 46 Mattingly: And the guard is down.

218 36 48 Young: Install the guard.

218 36 50 Mattingly: It's down and locked.

218 36 51 Young: Verify PGA pressure, 3.7 to 4.0. Verify tone is off.

218 36 55 Mattingly: Tone is off, and I have 3.9.

218 36 59 Young: EVA sta -

218 37 01 Crew: (Garble).

218 37 06 Young: That makes me sick. That (garble).

218 37 09 Mattingly: I didn't hear that.

218 37 10 Young: Okay, EVA station pressure gage 100 to 500 psi.

218 37 15 Mattingly: Okay. It's 1, 2, 3 - looks like it's just slightly over 300.

Public Affairs Officer: Apollo Control Houston. We're Go for cabin depress. Standing by.

218 37 23 Young: Okay. Fine. Verify surge tank pressure greater than 750.

218 37 31 Hartsfield: Apollo 16, you're Go for cabin depress.

218 37 36 Young: Okay.

218 37 37 Mattingly: The surge tank is reading 860.

218 37 44 Young: Okay, Go for depress. GN2 valve handle, Pull.

218 37 49 Mattingly: Okay, GN2 is to Pull.

218 37 51 Young: Gage minimum, leave in vent position.

218 37 54 Mattingly: Say again.

218 37 56 Young: Gage - Gage to minimum. Leave in the vent position.

218 37 59 Mattingly: Okay, the gage is minimum, and it is in vent.

218 38 04 Young: Verify helmet and gloves locked.

218 38 07 Mattingly: Okay, I got two gloves that are locked. You checked my helmet.

218 38 13 Young: Right.

218 38 14 Mattingly: Okay.

218 38 18 Young: Confirm Go for depress from Houston. We got that.

218 38 20 Mattingly: All set.

218 38 21 Young: EVA warning tone may come on momentarily during depress. Side hatch dump valve to open. O2 Flow Hi warning light may come on before cabin pressure regs lock up.

218 38 32 Mattingly: Okay.

218 38 33 Young: Close the dump valve at 3.25. Can you see that, Ken?

218 38 38 Mattingly: I'll close it, and see how we're doing.

218 38 41 Young: Okay. Houston, can you give us a call at 3.25?

218 38 45 Hartsfield: Will do.

218 38 48 Young: Are you ready? All set?

218 38 50 Mattingly: Yeah.

218 38 51 Young: Okay, equalization valve's coming open.

218 39 10 Mattingly: Okay, coming down through 4.5.

218 39 31 Mattingly: Yeah. We may get a jettison before we get the cabin dumped. Okay, going through about 3.5.

218 39 39 Hartsfield: Roger; 3.

218 39 44 Mattingly: 3.25.

218 39 45 Hartsfield: Okay, 3.2.

218 39 48 Mattingly: Okay, equalization valve is closed.

218 39 52 Young: Okay, O2 Flow indicator is less than a half. It is. It's reading - Well, wait a second. Let it stabilize here. Got another accumulator cycle.

218 40 08 Hartsfield: Accumulator cycle, we confirm.

218 40 12 Young: Okay, right down now.

218 40 22 Mattingly: Okay, that's great. Go ahead and - Ready to go?

218 40 26 Young: Yeah.

218 40 27 Mattingly: Okay, cabin's coming down.

218 40 29 Young: Okay.

218 41 02 Mattingly: Okay, I show 2.5. Want to get that one in there.

218 41 17 Young: Okay.

218 41 32 Mattingly: Cabin pressure is 2.0.

218 41 B6 Young: Okay.

218 41 37 Mattingly: Fixing to get (garble) off the peg pretty soon.

218 42 20 Mattingly: Okay, I'm showing 1.3.

218 42 24 Young: Okay.

218 42 52 Mattingly: Cabin shows about 1. I'm going to open it a little more; that can help it.

218 43 04 Young: How's your keying, Ken?

218 4B 05 Mattingly: I'm fine.

218 43 06 Young: Good.

218 43 08 Mattingly: It's a lot better when you get the cabin depressurized.

218 43 40 Mattingly: Well, I'm still showing about three-quarters.

218 43 47 Young: Don't - don't let that screw go in there, Ken.

218 43 49 Mattingly: Oh, I tried.

218 43 52 Young: Did it go in?

218 43 55 Mattingly: It looks like it went in here, I can't tell.

218 44 33 Mattingly: Okay, looks like we're down pretty low.

218 44 40 Young: Okay, verify suit pressure stable, 3.5 to 4.0.

218 44 43 Mattingly: My pressure is steady at 3.75.

218 44 46 Young: Okays verify O2 Flow Hi light is off. That's verified. How's your cuff gage, Charlie?

218 44 58 Young: Okay. Mine, too. EVA station pressure gage 100 to 500. No tone.

218 45 03 Mattingly: Okay, still setting on 300, and no warning tone.

218 45 06 Young: Okay, panel 3 S-Band Aux TV to TV.

218 45 09 Mattingly: Okay.

218 45 11 Young: I'm going to Intercomm/PTT.

218 45 13 Mattingly: Oh, let's see. I'm not sure that cabin's really down out of that pazhan [?] region. How about reading me that - that step again when I get the hatch?

218 45 31 Young: It doesn't matter right now? Okay.

218 45 34 Mattingly: If you can get it on, fine; if not, don't worry about it.

218 45 43 Young: Okay.

218 45 48 Mattingly: I can't read the parallax in the gage. It looks like it must be just about down though.

218 45 52 Young: Okay, well let's ask the ground. Houston, what do you show the cabin pressure?

218 45 54 Hartsfield: Roger; we're showing you 0.1.

218 46 00 Mattingly: That ought to be enough, huh?

218 46 02 Young: Okay. Yeah, that's enough. Okay, I'm going to Intercom/PTT.

218 46 08 Mattingly: And, Houston, is that low enough pressure to turn the TV on?

218 46 32 Mattingly: Henry, did you read ...

218 46 33 Hartsfield: Roger. We copy. Press on with the - with the - turning it on.

218 46 38 Mattingly: Okay. Thank you, sir.

218 46 57 Mattingly: You have TV on.

[The crew are now about to start opening the hatch for the EVA.]

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