Vance Brand (CAPCOM)

Jim, on the battery problem, we have determined that it is not overcurrent or reverse current. We suspect it's over-temp, but don't know for sure, so we're going to watch it for awhile.

Vance Brand (CAPCOM)

Jim, Charlie has some procedures to read up for you here; I think you'll need your activation checklist, if it's handy.

Vance Brand (CAPCOM)

Aquarius, that's the contingency checklist.

Jim Lovell (CDR)

Okay. I'll just—Okay. Stand by, Charlie.

Jim Lovell (CDR)

Okay, Charlie. I've got the contingency checklist, and standing by.

Charlie Duke

Okay, Jim. We'd like you to turn to page—page 24, which is the “30-Minute Activation,” and this is going to be a procedure for the mid-course burn that we got coming up at 105 with the AGS up. Over.

Jim Lovell (CDR)

Roger. On the midcourse at 105, and I'm on page 24.

Charlie Duke

Okay; “30-Minute Activation,” omit steps 1, 2, and 3; perform step 4, “RCS system A/B-2.” Over.

Jim Lovell (CDR)

Roger. Omit steps 1, 2, and 3; perform step 4.

Charlie Duke

Roger. And on the “EPS Activation,” same page, perform step 1; and in step 2, perform line number—line number 6, “EPS DISPLAY-CLOSE.” Over.

Jim Lovell (CDR)

Okay. On “EPS Activation,” perform step 1, and perform step 2, line 6 only; is that correct?

Charlie Duke

That's affirmative, Jim. The rest of the stuff is already closed at this time, so that's all we'll have to do is close the EPS DISPLAY breaker.

Charlie Duke

All right. Turn to page 25. On page 25, omit step 3; perform step 4. On step 4, last line, scratch “CB(16) EPS: INVERTER 2, closed.” Over.

Jim Lovell (CDR)

Roger. Omit step 3; perform step 4, except for the last line. Circuit breaker 16, EPS INVERTER 2, closed.

Charlie Duke

Roger. That's correct. On step 5, perform step 5. Under “Primary Glycol Loop Activation,” step 1, line 1, “CB(16) ECS: DISPLAY—CLOSE.” That's a crew option; you can have it if you want to. Omit the rest of step 1 and step 2. Perform step 3. Over.

Jim Lovell (CDR)

Okay. On primary glycol loop activation, crew option on step 1, first line; the rest of it we'll omit. Step 2, we'll omit, and we'll do step 3.

Charlie Duke

That's affirmative, Jim, with the following DELTAs on step 3, and if you'll turn to page 26, I'll give you the DELTAs on the activation circuit breaker list. Over.

Charlie Duke

Roger. On line 1, correction, row 1, under AC BUS A: TAPE RECORDER should be open; DECA GIMBAL, open. All the other ones as shown on the page. Over.

Jim Lovell (CDR)

Okay. On row 1, AC BUS A: TAPE RECORDER and DECA GIMBAL will be open. All the rest as shown.

Charlie Duke

Roger. And we don't know the status of your windows. If you—During this burn, we're going to have to look out the forward window to get the alinement with the COAS, so you might need the commander window heater and you can, of course, use that breaker if needed, since we do have the AC power. On row 2—Go ahead. Over.

Jim Lovell (CDR)

I don't think we'll need it, Charlie.

Charlie Duke

Okay; fine, Jim. On row 2, under RCS SYSTEM A: ASCENT FEED 2 and ASCENT FEED 1 should be open. Under FLIGHT DISPLAYS: MISSION TIMER should be open; GASTA, open; ORDEAL, open. Under AC BUS A: GASTA, open. The rest are as shown on the page. Over.

Jim Lovell (CDR)

Okay. On row 2, we're going to open up ASCENT FEED 2 and ASCENT FEED 1 under RCS SYSTEM A. We're going to open up the MISSION TIMER, and FLIGHT DISPLAYS: the GASTA and the ORDEAL; and the AC BUS A: the GASTA.

Charlie Duke

That's affirmative. Okay. Row 3, under PROPELLANT: DESCENT HELIUM REG/VENT should be open. Under HEATERS: RENDEZVOUS RADAR STANDBY, open; LANDING RADAR, open. Under STAB/CONTROL: ATCA (PGNS), open. Under ED and LIGHTING: all four open. Over.

Jim Lovell (CDR)

Okay. Row 3, under PROPELLANT—propulsion: the DESCENT HELIUM REG/VENT will be open: the STANDBY RENDEZVOUS HEATER will be open and the LANDING RADAR HEATER circuit breaker will be open. I just changed antennas; and, keeping on down the line, ATCA PGNS will be open and the last four circuit breakers, two under ED and two under LIGHTING, will be open.

Charlie Duke

That's affirmative. Okay. Under row 4, under ECS: GLYCOL PUMP AUTO TRANSFER, close. Under COMM: UP DATA LINK, open; VHF B and VHF A should be open. Under PGNS: LGC/DSKY, open; IMU OPERATE, open. Over.

Jim Lovell (CDR)

Okay. Under row 4, the AUTO TRANSFER will be close. UPDATA LINK, open; VHF A and B, open; DSKY, open; and IMU OPERATE, open.

Charlie Duke

That's affirm. On the last row, the only DELTA is under the CROSS TIE BUS and it should be open. Over.

Jim Lovell (CDR)

Say that again, Charlie.

Charlie Duke

Okay. Under the last row, under EPS is the only DELTA and that is under the CROSS TIE BUS. It should go open. Over.

Jim Lovell (CDR)

Roger. The CROSS TIE BUS should go open.

Charlie Duke

That's affirm. Going on to page 27, Activation, panel 16. Under RCS SYSTEM Bravo: ASCENT FEED 1, ASCENT FEED 2 should be open. Under PROPULSION: PQGS should be open; ASCENT HELIUM REG, open. Over.

Jim Lovell (CDR)

Okay. Line 1, on panel 16, ASCENT FEEDs 1 and 2 will be open. And the PQGS will be open, and the ASCENT HELIUM REG will be open.

Charlie Duke

That's affirmative. On the next three rows, we only get the nine DELTAs, so I'll go through the next three rows completely and then you can read those back. Under LIGHTING —

Charlie Duke

Under LIGHTING; FLOOD, open; TRACK, open. Under ED LOGIC—Correction, under ED: LOGIC, open. Under STAB/CONTROL: DESCENT ENGINE OVERRIDE, open. Under ECS: SUIT FLOW CONTROL, open. Under row 3, COMM: DISPLAY, open; VHF A TRANSMITTER, open; VHF B RECEIVER, open. Under ECS: DISPLAY, that's crew option. Last row, under EPS: INVERTER 2, open. Over.

Jim Lovell (CDR)

Okay. On the last three rows, we have FLOOD and TRACK circuit breakers, row 2, open; LOGIC POWER B, open; DESCENT ENGINE OVERRIDE, open; SUIT FLOW CONTROL, open. On the third row—row, DISPLAY, open; VHF A and—VHF—VHF A TRANSMITTER, open; VHF B RECEIVER, open. And under ECS: we have DISPLAY, open, at crew option. And the last one, INVERTER 2 under EPS, will be open.

Charlie Duke

Roger. That's a good readback. Under that ECS DISPLAY, it shows it closed. If, with it closed, you can have some readout of—onboard readout of your ECS system—draws a lot less than a half amp so it's up to you whether you want it or not. Okay, on page 28.

Charlie Duke

On page 28, step—perform step 4 with the following changes in the warning light status. Under the warning lights, you will probably—you will have ASCENT PRESSURE and an LGC light. Scratch “RCS A and RCS B REG.” Under caution lights, you'll have a PRE AMPS light. Over.

Jim Lovell (CDR)

Roger. Under warning, we'll have ASCENT PRESSURE and LGC; and under caution, we'll have a PRE AMP.

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Charlie Duke

Affirmative. Under “VHF/S-band Activation and Checkout,” scratch step 1. Under step 2, change “DOWN VOICE BACKUP” to VOICE. Scratch step 3. Under “PGNS turn on,” scratch entire procedure. Under “DAP Set/Gimbal Drive,” scratch entire procedure. Over.

Jim Lovell (CDR)

Okay. Under “VHF/S-band Activation and Checkout,” scratch step 1. Do step 2 with the following change, “DOWN VOICE BACKUP” to “VOICE.” Scratch step 3. Scratch the entire remaining events that page. Over.

Charlie Duke

That's affirmative, Jim, Going on to page 29. We've got—At this point, there's a write-in required. It's about a six or seven liner, and I'll try to go fairly slowly and let you write it down, if you're ready to copy. Over.

Charlie Duke

Okay. At this point, we'd like you to “Verify RCS heaters in AUTO for 15 minutes.”

Jim Lovell (CDR)

Is that the first step, Charlie?

Charlie Duke

That's affirmative. What we're trying to do here is we're getting you set up in an attitude so you can damp your rates and come out of PTC. And this is the configuration I'm reading you now, the next—in the next six lines, the procedure for getting you into a configuration to damp the rates and stop PTC. Over.

Jim Lovell (CDR)

Okay. So the first thing will be to—“Go to AUTO on the RCS SYSTEM A and B”?

Charlie Duke

It's the “Verify that the heaters have been in AUTO for 15 minutes.” Back on the first page of this procedure, you put the heaters in AUTO and you pushed the breakers in, and we'd like for them to warm up the quads for 15 minutes before we start to—stop at—stopping PTC. Over.

Jim Lovell (CDR)

Roger, “Verify heaters RCS on for 15 minutes.”

Charlie Duke

Okay. Step 2: “BALANCE COUPLE, OFF; DEAD BAND, MINIMUM; ATTITUDE CONTROL: PITCH and ROLL to PULSE; YAW to DIRECT; MODE CONTROL: AGS, ATT HOLD; GUIDANCE CONTROL to ACS; damp rates; pitch and roll with the TTCA, yaw with the ACA with the Earth in the front window.” Over.

Jim Lovell (CDR)

Okay, let's see if I got it. Step 2 is “BALANCE COUPLE's OFF; DEAD BAND, MIN; ATTITUDE CONTROL: PITCH and YAW at PULSE; YAW, DIRECT. MODE CONTROL will be in AGS, ATT HOLD; GUIDANCE CONTROL will be in AGS; we'll damp the rates; pitch and roll with the TTCA, and yaw with the ACA; and we'll probably have to have some reference point, so I have to try and stop on the Earth.” Over.

Charlie Duke

Roger, Jim. We were hoping that in your PTC that you occasionally see the Earth coming through the window; and, if that's true, then we'd like you to have to—just damp the rates with the Earth in the forward window. And then we'll give you the burn attitude via the forward window on the Earth momentarily. Over.

Charlie Duke

Okay. That was the entire procedure for damping the rates, only—though I only gave you—said it was step 2, that was the entire procedure. Now, continuing on to what's printed on page 29—Correction, you had one error in the readback under ATTITUDE CONTROL. It was PITCH and ROLL to PULSE; YAW to DIRECT. Continuing on, on page 29 with the printed procedure, the first four lines, scratch. Step 3, scratch. Under “AGS Activation,” one change: add a step. First step will be “Verify ASA CB(16) in for 10 minutes.” The rest of the AGS activation is as printed. Over.

Jim Lovell (CDR)

Okay. “Verify ASA circuit breaker 16 in for 10 minutes”; and, I take it, 10 minutes back in our procedures we'll have a note saying to put that in.

Charlie Duke

It's—the circuit breaker goes in on the circuit breaker activation page, Jim. So, by the time we get here and have the rates all damped, we feel that—that the PIPAS will be up to temperature by this time, and we can go ahead and turn it—turn the AGS on at this time. Over. But we just want you to verify that.

Jim Lovell (CDR)

Okay. And one other question, Charlie. I'd like to know if the note you gave me about damping the rates is before the other information on page 29.

Charlie Duke

That's affirmative. Add that in to the top of the page. The—What we're really doing—Let's—let's put it in to right before the “AGS Activation.” The other—the other procedure on the top of the page belongs with the “DAP Set Gimbal Trim,” and we're just omitting all of that procedure. So the addition that—on the damping, the rates should really go in right before the “AGS Activation.” Over.

Charlie Duke

What we're really trying to do is get you in a posture so that when you see the Earth come through the window, you can damp her out and hold—hold the Earth in the window. Proceeding on to the rest of page 29, under “RCS PRESS,” scratch the entire three steps as printed. On page 30, scratch step 4 under the “RCS PRESS.” Over.

Jim Lovell (CDR)

Roger. Under “AGS Activation,” well, I included that step on the ASA circuit breaker and we'll do step 1 and 2 under “AGS Activation.” But then we'll scratch steps 1, 2, and 3 under “RCS PRESS” and, on page 30, we'll scratch step 4.

Charlie Duke

Affirm. Under “DPS PRESS,” step 1, line 1, scratch. Line 4, “DESCENT HELIUM REG 1, talkback barber pole.” Under step 2, scratch; step 3, scratch; “LANDING GEAR DEPLOY,” scratch. Over.

Jim Lovell (CDR)

Okay. Under “DPS PRESS,” we'll scratch the first line and we'll have the “DESCENT HELIUM REG, talkback to barber pole.” We'll scratch steps 2 and 3, and we'll scratch the “LANDING GEAR DEPLOY.”

Charlie Duke

Roger. Now we got, on the back of page 30, Jim, you've got a blank page in your checklist, or should have, and we'd like to add a procedure to get you to burn attitude. Over.

Jim Lovell (CDR)

Okay. A procedure to get the burn attitude.

Charlie Duke

Okay. First statement is a statement: “Verify AGS in OPERATE for 5 minutes.” Then we go to “AGS address 400 plus 5, then 400 plus zero. ATTITUDE CONTROL: PITCH and ROLL to PULSE; YAW, MODE CONTROL. Maneuver using TTCA pitch and roll.” The computer is controlling yaw, but you can override with ACA. You with me? Over.

Jim Lovell (CDR)

Okay, Charlie. I'm with you so far.

Charlie Duke

Okay, Jim. “When in attitude, ACA out of detent to zero error needle. Then set EVENT TIMER,” and we'll give you a countdown on that when you get to that step. Over.

Jim Lovell (CDR)

Okay. “When in attitude, ACA out of detent to null needles, and set DET.”

Charlie Duke

Roger. Now, that—the burn attitude will be coming up on a pad, but, basically, we're looking for a local horizontal retrograde burn, which means, using a COAS, if you put the horizontal line on the COAS on the horns of the Earth and then roll to place the X-axis in the direction of the Sun, we'll—that will put us in both burn attitude; and you can check that via the Sun which will be in the AOT detent 2. Should lie right along the cursor at the top. We'll have some more words on that for you momentarily. Now, I'd like to go on to page 31 if you're ready. Over.

Jim Lovell (CDR)

Okay. I figure I have a handle on the attitude, the way the Earth should look in the COAS, and you're going to give me some words on what the Sun would look like in the AOT. Is that right?

Charlie Duke

That's affirmative, Jim. We haven't got a picture of it yet. It's going to be in the top part of the COAS—Correction, top part of the AOT at the top of the—the top of detent 2 and the top part of the AOT, and it should, in attitude, if you're right on the Sun, should split the cursor, though that roll angle is not too critical; if we're in about 10 degrees, we'll be okay. We—but I think—we think you should be able to get it better than that. On page 31, under the “DPS Burn Technique,” you can scratch the bottom part below the little diagram there since the gimbal is locked. Over.

Jim Lovell (CDR)

Understand scratch the bottom part underneath the diagram because the gimbal is locked.

Charlie Duke

That's affirmative; and, since the gimbal was trimmed out at the big burn yesterday, we should be still through the c.g., and we'd like to make sure that Jack sits in the same place for this burn that he did yesterday. That way, we'll—you should have no trouble controlling attitude. Now I'm ready to go over to page 32. Over.

Jim Lovell (CDR)

Okay. Let me see if I have that right, now. You want Jack to sit in the same attitude so that the gimbals are the same place so you don't have trouble controlling attitude. I got it.

Charlie Duke

Okay. Now on page 32, top of the page, first line, scratch “VERB 76.” Third line, “MODE CONTROL: AGS, ATT HOLD.” At “Minus 6 minutes,” scratch lines 1, 2, and at “Burn Attitude,” scratch “VERB 40 NOUN 20.” Scratch lines 2, 3, and 4. Now at “Burn Attitude,” we want you to do a “400 plus 5” and then a “VERB—a 400 plus zero.” And we have a caution note at this point. Over.

Charlie Duke

Okay. The caution is after “400 plus zero”: Do not go out of detent on ACA again." Over.

Jim Lovell (CDR)

Okay. After the last “400 plus zero,” “Do not go out of detent with ACA.” Is that correct?

Charlie Duke

That's a Roger, Jim. What happens is, of course, we set—when you go out of detent, you reset the AGS error needles and you—and you lose your attitude reference. You establish a new attitude reference, and it might not be the burn attitude since, at this point, we're controlling attitude with the TTCA. Now, picking up with the “VERB 37, ENTER,” scratch. Scratch everything down to the “404 plus zero,” and we want you to perform those AGS steps with 404 down through 470. Over.

Jim Lovell (CDR)

Okay. We'll scratch everything down to “404 plus zero,” and we'll perform those four steps.

Charlie Duke

Roger. Turning over to page 33. Minus 4 minutes. Okay. Moving down the page, it's about line 7, to “ENGINE GIMBAL”: “ENGINE GIMBAL, OFF.” Down to “MODE CONTROL,” make that read “MODE CONTROL: AGS, ATT HOLD,” and then scratch “PROPELLANT QUANTITY MONITOR, DESCENT 1.” Over.

Jim Lovell (CDR)

Okay. At 4 minutes, “ENGINE GIMBAL” will be “OFF”; “MODE CONTROL” will be to “AGS, ATT HOLD”; “PROPELLANT QUANTITY MONITOR, DESCENT 1,” scratched.

Charlie Duke

Roger. Picking up at minus 1 minute, scratch “MASTER ARM, ON.” Minus 35 seconds, scratch first two lines. At minus 10 seconds, change that to “Minus 9 seconds”; so, at “Minus 9 seconds,” it will be “Manual Ullage.” At 2 seconds, scratch “CMC MODE, FREE,” and scratch “ACA out of detent.” At—after “IGNITION,” at plus 1 second, “Terminate Ullage.” Are you with me? Over.

Jim Lovell (CDR)

Okay. At 1 minute, “MASTER ARM,” we scratch. At 35 seconds, scratch the first two lines. “Manual Ullage” will start at 9 seconds; we're scratching the blocks at 02 seconds; and the line beneath that, at plus 1 second, we “Terminate Ullage.”

Charlie Duke

That's affirm. Picking up at plus 5 seconds; scratch the rest of the page. “TTCA, attitude control; and MASTER ARM, OFF.” Over.

Jim Lovell (CDR)

Scratch the remainder of the page.

Charlie Duke

Okay. Now, like to verify that under the 35 seconds, minus 35 seconds, the only thing you have remaining is “ENGINE ARM to DESCENT.” Over.

Jim Lovell (CDR)

That's affirm. That's the only thing I have.

Charlie Duke

Okay. Turning to the next page and the last page, Jim, 34. Top of the page, “Monitor DELTA-VX via 470.” Scratch next two lines, “When propellant quantity equals 37” and the “DESCENT HELIUM REG.” Scratch “TTCA commander, reduce to 10 percent.” Now we want you to add a line; “shut”—It's a shutdown criteria, “shutdown on burn time minus 1 second.” Over.

Jim Lovell (CDR)

Okay, “The shutdown is on burn time minus 1 second.” Let me give you an example. If we have a 30-second burn, we're going to shut down at 29 seconds. Is that correct?

Charlie Duke

That's affirmative. We'll give you the pad, be coming up here from FIDO in a couple of hours, I guess, when we stabilize out on our tracking. The reason for—If you're ready to copy out a couple of more steps, and then I'll explain the reason we want to shut down on this burn time minus 1 second. Picking up on "When DELTA-VX

Charlie Duke

“— When DELTA-VX equal to the final DELTA-VX,” scratch that line. Scratch “ATTITUDE CONTROL: YAW, to PULSE.” Add—Correction, scratch “Damp excessive rates via LM Y, Z translation” and add at that point “Null” error needles. Trim address 470 to 0.1 foot per second." Over.

Jim Lovell (CDR)

Okay, going through. After the “Shutdown on burn time minus 1 second,” we scratch the next line; and we scratch “ATTITUDE CONTROL: YAW, to PULSE”; we scratch “Damp excessive rates via LM Y, Z translation”; we add the line “Null” error needles, trim—Null the error needles and trim address 470 to—What was the value there, Charlie?

Charlie Duke

“0.1 foot per second.” The reason we are shutting down on the burn time is, since the ASA breaker has been out for so long, we're not real confident that our AGS PIPAs are going to be super-sharp. So we want to make sure that we just get a burn time—no overburn; so we're shutting down on burn time minus 1 second. And then that will allow us a plus-X translation to trim 470 if it looks okay. If we had an overburn, we'd be in —

Charlie Duke

— if we had an overburn, we'd be impinging on our command module to try to trim it out, so that's our reasoning there. Over.

Charlie Duke

Okay. Picking up in the middle of the page, that—a block “CMS resume attitude control,” scratch. Scratch the next line; “PRO VERB 96.” Scratch the third line; “PROPELLANT QUANTITY MONITOR, OFF.” Over.

Jim Lovell (CDR)

Okay. We'll scratch the blocks, and we'll scratch the “PRO VERB 96”; then we'll scratch “PROPELLANT QUANTITY MONITOR, OFF.”

Charlie Duke

Roger. Now, at the bottom of that page, I have a procedure for you to reestablish PTC. Over.

Jim Lovell (CDR)

To reestablish PTC. Go ahead.

Charlie Duke

Okay. First line, “ATTITUDE CONTROL, three to PULSE”; line 2, “Roll with the TTCA until attitude is roll, plus or minus 90; pitch, 0; yaw, 0.” Over.

Jim Lovell (CDR)

Okay. Step 1, “ATTITUDE CONTROL, three to PULSE”; 2, “Roll with the TTCA … pitch is 0 and yaw is 0,” and I think that will be on the AGS ball.

Charlie Duke

That's affirmative. You broke up there for a minute, Jim. We'll do that on the AGS ball from the burn attitude. We just want you to roll either way 90 degrees, keep pitch 0 and yaw 0. Now, step 3; “When at—when at attitude, ACA out of detent.” Step 4; “ATTITUDE CONTROL: YAW, to MODE CONTROL. When rates are less than 0.05, ATTITUDE CONTROL: YAW, to PULSE.”

Jim Lovell (CDR)

Okay, Charlie. Can you hold up here a second? I lost you.

Jim Lovell (CDR)

Start with step 3 again. “When attitude—When at attitude, ACA out of detent.”

Charlie Duke

That's Roger. Next step, step 4: “ATTITUDE CONTROL to YAW”—Correction, “ATTITUDE CONTROL: YAW, to MODE CONTROL.” Over.

Jim Lovell (CDR)

Okay. Step 4 is “ATTITUDE CONTROL: YAW, to MODE CONTROL.”

Charlie Duke

Roger. Step 5: “When rates are less than 0.05 degrees per second, ATTITUDE CONTROL: YAW, to PULSE.”

Jim Lovell (CDR)

Okay. “When rates are less than 0.05 degrees per second, ATTITUDE CONTROL: YAW, to PULSE.”

Charlie Duke

Roger. Step 6: “Spin up to 0.3 degree per second in yaw,” and that takes about 21 pulses. Step 7—Yes.

Charlie Duke

Okay. Step 7: “MODE CONTROL, AGS, OFF.”

Jim Lovell (CDR)

Okay. Step 6 was “Spin up to 0.3 degrees per second in yaw”; that's about 21 pulses. Step 7 was “MODE CONTROL, AGS, to OFF.”

Charlie Duke

That's affirm. Step 8: “Power down per power”—Correction, “Power down per contingency checklist page Power 5.” Over.

Jim Lovell (CDR)

Okay. And step 8 is Power down per contingency checklist Power 5," and I take it that's been revamped considering our situation. Okay.

Charlie Duke

That's affirmative, Jim. That's the one we gave you last night after the big burn, and we'll use that one as modified by—by us. This—we tried this PTC under AGS in the simulator and, of course, no slosh or anything, but it seemed to work pretty good by nulling the rates using the TTCA in pitch and roll and letting the ACS do it in yaw. You null the rates by looking at the error needles and just watching those, and when they don't—when they stop moving, then you got it within the limits of what we want. Over.

Jim Lovell (CDR)

Okay. And I guess, Charlie, you have no—Do you have a ATT hold mode in pitch and roll at all in this configuration we're in, or do we have to use the TTCA?

Charlie Duke

We feel like we have to use the TTCA. The AGS gains are not too good in pitch and roll in this configuration. It'll hold it in yaw but it won't in pitch and roll. Over.

Charlie Duke

And you'll have—During the burn, of course, you'll be controlling pitch and roll via the error needles with the TTCA also, and it's the little scheme that we've practiced in some of the SIMs. Over.

Jim Lovell (CDR)

And, Houston, want to make sure that we allow enough time to get to the proper attitude for the burn so that we can be sure we establish the proper attitude and don't have to rush the burn.

Charlie Duke

Roger, Jim. We -we're looking right now, tentatively, at starting this about 45 minutes before the burn and our sensitivity is—not too bad on this burn. We can go 30 minutes either way and not affect our DELTA-V. Over.

Jim Lovell (CDR)

Okay. Fine. And do you have a handle on just how long the burn will be? In time?

Charlie Duke

It's looking like at about 7.8 seconds and about 15—Correction, 7.8 feet per second and about 15 seconds. Over.

Charlie Duke

Negative. 15. 1 5.

Charlie Duke

And one other point is that we'd like to remind you that this is going to be in blowdown and both REGs B closed but we've got plenty at the 10 percent.

Charlie Duke

And, Jim, in the simulator with our configuration that we had here, the thing is real stable at 10 percent, so we don't think you'll have to tweak very much at all using the TTCAs. Over.

Charlie Duke

And I'll give you back to Vance. Thank you.

Vance Brand (CAPCOM)

Jim, regarding your number 2 battery, we think that it's probably a sensor failure, a temperature sensor failure that's caused this alarm, rather than an actual overtemp of the battery; the reason being that we haven't seen any higher temperatures in the glycol loop. We expect to put the battery back on about 101 hours. That'll be about 10 minutes, and then we'll look at it some more there. Over.

Jim Lovell (CDR)

Okay. Concerning number 2 battery, you think it might be a sensor failure because you haven't seen any changes, and you're going to put the battery back on the line in about 10 minutes.

Jim Lovell (CDR)

Okay.

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Spoken on April 15, 1970, 11:26 p.m. UTC (51 years, 7 months ago). Link to this transcript range is: Tweet

Jim Lovell (CDR)

For information, Vance, about a half hour ago, I guess, Jack and I couldn't see constellations at certain spacecraft attitudes, stars. We could see the—Scorpio and Sagittarius and we could see Altair or Acrux and Alpha Centuri, Vega, stars of that magnitude, and our venting has stopped which allows us now to differentiate between the particles and the stars.

Vance Brand (CAPCOM)

Roger; copy. Understand you can see the stars pretty well. Were you, at that time, in an attitude facing away from the Sun? I presume this is very attitude critical.

Jim Lovell (CDR)

Yes. It is somewhat, Vance. If we have the Sun shining off the quads, it sort of ruins our vision; and also, if the Earth or the Moon are in the general field of view, we can't see anything.

Vance Brand (CAPCOM)

Jim, we're ready to put that battery back on the line. Request you open the CROSS TIE BAL LOAD circuit breaker, panel 16, and then put back—BAT 2 back on the line.

Jim Lovell (CDR)

Okay. First of all, we'll open the BALANCE CROSS TIE breaker on panel 16.

Jim Lovell (CDR)

Okay. The CROSS TIE BALANCE LOAD circuit breakers is in now, Vance. Now you want us to put battery 2 back on. Is that affirm?

Vance Brand (CAPCOM)

Did you say it was in, or did you pull it out?

Jim Lovell (CDR)

No. It's in; do you want it out?

Vance Brand (CAPCOM)

That's affirm. We'd like it out, and then BAT 2 on the line.

Jim Lovell (CDR)

Okay. Coming up. BAT 2 is on the line. We have a MASTER ALARM and a BATTERY light.

Vance Brand (CAPCOM)

Copy. And—and we think that's probably an indication of the sensor problem, but stand by.

Vance Brand (CAPCOM)

Jim, it looks to us like your battery is good, that this is in fact a sensor problem; therefore, request you close the CROSS TIE BAL LOADs on—circuit breaker on panel 16. Advise —

Vance Brand (CAPCOM)

— advise that you will not have any malfunction indication on any of your batteries now, but we can watch it from the ground. Over.

Jim Lovell (CDR)

Okay. We'll close the CROSS TIE BALANCE LOAD circuit breaker at this time.

Jim Lovell (CDR)

That's closed, and we don't have any warning on any of the batteries, but you can monitor from the ground.

Vance Brand (CAPCOM)

And, Jim, we have a lengthy procedure here for powering up the CSM and turning on instrumentation so we can check the TM, and this will take a large piece of scratch paper whenever you're ready to copy.

Jim Lovell (CDR)

This is to power up the CSM?

Jim Lovell (CDR)

Okay. I'll tell you what, I'll have Jack get configured. He can copy that down and I'll have him—we'll get the stuff. Stand by.

Jack Swigert (CMP)

Okay, Vance, how do you read the Aquarius?

Vance Brand (CAPCOM)

Okay, read you loud and clear, Aquarius. Is it cool in there now?

Jack Swigert (CMP)

Okay. Yes, it's pretty cool. This is the third officer on this LM crew here. Ready to copy.

Vance Brand (CAPCOM)

Okay. Jack, this is a lengthy procedure, take probably two or three pages. It assumes that you are in your nominal configuration, which was sent up—or in your day-flying configuration, which was sent up to you earlier today.

Jack Swigert (CMP)

Okay. I can verify that we are in that configuration with the exception of panel 382, the water accumulator, which I've left off in case we wanted to get some more drinking water out of the command module, and I'll put those in the proper configuration before we do anything.

Vance Brand (CAPCOM)

Okay. Panel 4: TELCOMM, GROUP 1, to AC1. Panel 5: close the following circuit breakers: ECS, PRESS GROUP 1, MAIN B; ECS, PRESS GROUP 2, MAIN B; ECS, TEMP, MAIN B; ECS, SECONDARY LOOP TRANSDUCER, MAIN B; ECS RAD, CONTROL/HEATERS, MAIN B; BAT RELAY BUS, BAT B; BAT CHARGER, BAT B, CHARGE—or to B, CHARGE; INVERTER CONTROL, 2; INVERTER CONTROL, 1; EPS SENSOR SIGNAL, AC1; EPS SENSOR SIGNAL MAIN B; EPS SENSOR UNIT, AC BUS 1; WASTE/POTABLE WATER, MAIN B; INSTRUMENTS, ESS, MAIN B; that's ESSENTIAL, MAIN B. Are you with me?

Jack Swigert (CMP)

Okay, Vance. Are you with me?

Vance Brand (CAPCOM)

Roger. Why don't you read that group back, and then we'll proceed on.

Jack Swigert (CMP)

Okay, sounds good. Because I don't know where I—how far I lost you. Okay, panel 4; TELCOMM, GROUP 1, to AC1. On panel 5, close the following circuit breakers: ECS, PRESSURE GROUP 1, MAIN B; ECS, PRESSURE GROUP 2, MAIN B; ECS, TEMP, MAIN B; ECS, SECONDARY LOOP TRANSDUCER, MAIN B; ECS RAD, CONTROL/HEATERS, MAIN B; BAT RELAY BUS, BAT B; BAT CHARGER, BAT B; INVERTER CONTROL, 2; INVERTER CONTROL, 1; EPS SENSOR SIGNAL, AC1; EPS SENSOR SIGNAL, MAIN B; EPS SENSOR UNIT, AC1; WASTE/POTABLE H2O, MAIN B; INSTRUMENTATION, ESSENTIAL, MAIN B.

Vance Brand (CAPCOM)

Okay; That's all correct. Is that reading rate okay for you?

Vance Brand (CAPCOM)

Okay, and leave a little space if you can to the right of these because when we talk about the backup procedure, why then we can just use the same listing, and I'll—I'll tell you open instead of close these circuit breakers, or at least most of them. Over.