Fred Haise (LMP)

That's 2 Bravo is reading—oh, about 0.25 to 0.3.

Fred Haise (LMP)

Okay. 2-C is reading 4.1.

Fred Haise (LMP)

And 3-A is reading 4.0.

Jack Lousma (CAPCOM)

Roger. 4.0. Say again what it is, please.

Fred Haise (LMP)

And 3-D is reading 1.95.

Fred Haise (LMP)

And, Houston, 13. O2 tank pressure number 1 is less than 300 now.

Jack Lousma (CAPCOM)

Roger. We're seeing that. We confirm it.

Jack Lousma (CAPCOM)

13, Houston. We're going to have to have you go through the shutdown procedure on fuel cell 1. Our O2 pressure is going down as you note and the temperature confirms it. Did you copy?

Jack Swigert (CMP)

Okay. Well, what bus configuration—What main bus do you want powered?

Jack Lousma (CAPCOM)

Okay, Jack. We want you to leave the bus configuration as it is. Fuel cell 2 on MAIN A, and we need OMNI Bravo.

Jack Swigert (CMP)

Okay, Jack. We're proceeding on the shutdown procedure for fuel cell 1.

Jack Lousma (CAPCOM)

And, 13, Houston. We'd like you to isolate the REPRESS package, please.

Jim Lovell (CDR)

Isolate the REPRESS package. Roger.

Fred Haise (LMP)

I can confirm REPRESS package is off.

Jack Lousma (CAPCOM)

Roger. So now you've got the REPRESS package and the surge tank isolated. Is that affirm?

Jack Swigert (CMP)

Okay. Now, this is—We're ready to close the REACs on fuel cell 1; is that right?

Jack Lousma (CAPCOM)

Jack, stand by on the fuel —

Jack Swigert (CMP)

On that last—confirmation. Okay.

Jack Lousma (CAPCOM)

Roger. We're—We're giving you one last —

Jack Swigert (CMP)

We want to just get one last confirmation.

Jack Lousma (CAPCOM)

Okay, Jack. We're getting that last confirmation. Stand by, please.

Jack Lousma (CAPCOM)

Okay, 13. We verify that we want you to close down—shut down fuel cell 1, close REACs valve.

Jim Lovell (CDR)

— fuel cell 1; close the REACs valve.

Jim Lovell (CDR)

REACs valve on fuel cell 1 is closed.

Jack Swigert (CMP)

Okay, Jack. I can confirm step 2. The fuel cell shutdown procedure is complete for fuel cell 1.

Jack Lousma (CAPCOM)

13, we recommend that you enable BD roll in the DAP. Over.

Jack Lousma (CAPCOM)

13, Houston. We're working on the big dish now, so turn the HIGH GAIN POWER switch off, please.

Jack Swigert (CMP)

Okay, Jack. When we got the loud bang, we got also a restart. Did you copy that? Is—does GUIDO want anything, a VERB 74 or anything done with the CMC?

Jack Lousma (CAPCOM)

13, Houston. We're ready with a VERB 74 now, please.

Jack Swigert (CMP)

Key moment With oxygen dropping, the crew considers a move to the LM: Okay, Jack. It looks like O2 tank 1 pressure is just a hair over 200.

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Jack Lousma (CAPCOM)

We confirm that here and the temperature also confirms it.

Jack Swigert (CMP)

Okay. Does it look like it's still going down?

Jack Lousma (CAPCOM)

It's slowly going to zero, and we're starting to think about the LM lifeboat.

Jack Swigert (CMP)

Yes. That's what we're thinking about, too. You want me to do a quick P52? It kind of looks like—We've been talking it over, and it kind of looks like we'd probably aline our plats—LM platform with our platform and then power down the CM, and keep the LM powered up doing a DPS—whatever DPS burns you give us?

Jack Lousma (CAPCOM)

13, we're not going to concern ourselves at the moment with a DPS burn. It's going to be some time before we'd get to that; but we're working on other procedures to give you, which will allow us to use the LM systems. Over.

Jack Lousma (CAPCOM)

Apollo 13, Houston. We'd like to charge battery A now.

Jim Lovell (CDR)

Charge battery A. Roger.

Jack Lousma (CAPCOM)

And, Jack, in regard to your question about the P52 and LM platform, it's—There's no need to worry about that now. We wouldn't be using the LM platform for—until about 79 hours, so let's go as is on the platform for now. Over.

Jack Swigert (CMP)

And, Jack, we've turned off the waste dump heater. If you're going to consider dumping any more waste water, we probably ought to do it while the duct is warm there.

Jack Lousma (CAPCOM)

Okay, Jack. Let's keep the water; no need for a dump right now.

Jack Lousma (CAPCOM)

13, Houston. We see the PROP ISOL valve on RCS quad Charlie closed, so we'd like to also disable AUTO RCS feature in quad Charlie.

Jim Lovell (CDR)

You want to isolate the AUTO RCS features in quad Charlie?

Jim Lovell (CDR)

Okay, Jack. I didn't plan to reset that quad Charlie DROP ISOL valve. Do you want me to do that? Okay. We just tried it and quad Alfa and Charlie barber poles are showing.

Jack Swigert (CMP)

Okay, Jack. That's the sec—secondary propellant barber poles on Alfa and Charlie.

Jack Lousma (CAPCOM)

13, Houston. It won't do any good to try to power the propellant valves on A and C, so we want you to disable the AUTO on RCS Charlie. And we have a procedure for getting power from the LM we'd like you to copy down.

Jack Swigert (CMP)

That sounds like good news.

Fred Haise (LMP)

Okay, Jack. About how long is it?

Jack Lousma (CAPCOM)

It's not a very long procedure, Fred. We figure we've got about 15 minutes' worth of power left in the command module, so we want you to start getting over in the LM and getting some power on that. And, you ready to copy your procedure?

Jack Lousma (CAPCOM)

Okay. In the CSM on panel 5, circuit breakers LM POWER 1 and 2, OPEN. Then LM POWER switch, reset and release. In the LM, on panel 11 and panel 16, TRANSLUNAR BUS TIE. Both circuit breakers CLOSE. On panel 16, circuit breaker ASCENT ECA CONTROL, CLOSE. On 16, DESCENT ECA CONTROL, CLOSE. On panel 14, put your BAT 5 NORMAL feed ON. BATs 1, 2, 3, and 4 LOW VOLTAGE taps, ON. BAT 5 NORMAL feed, OFF. ASCENT ECA CONTROL, OPEN. You copy?

Fred Haise (LMP)

Okay. In the CSM, on panel 5, we want CB LM POWER 1 and 2, OPEN. Then the LM POWER switch to reset, release. In the LM, panels 11 and 16, X LUNAR BUS TIE breakers closed. On panel 16, the ASCENT ECA CONTROL closed; the DESCENT ECA CONTROL closed. On panel 14, BAT 5 NORMAL feed ON, followed by BATS 1, 2, 3, and 4 LOW VOLTAGE taps ON. Then BAT 5 NORMAL feed OFF. Then ASCENT ECA CONTROL breaker OPEN.

Jack Lousma (CAPCOM)

That's a good readback, Fred.

Jack Lousma (CAPCOM)

And, 13, Houston. As a final effort here, we would like you to turn on the fans in tank 2. Over.

Jim Lovell (CDR)

Roger. Understand. Turn on the fans in tank 2.

Jim Lovell (CDR)

You want the O2 fans in tank 2, Jack?

Jack Lousma (CAPCOM)

That's affirmative, Jim.

Jim Lovell (CDR)

O2 tanks—fans in tank 2 are on.

Jack Lousma (CAPCOM)

13, Houston. We'd like you to start making your way over to the LM now.

Jack Swigert (CMP)

Fred and Jim are in the LM.

Fred Haise (LMP)

And, Jack, I got LM power on.

Jack Swigert (CMP)

Okay. You still with us, Houston?

Jack Swigert (CMP)

Okay, Houston. You read 13?

Jack Lousma (CAPCOM)

Reading you loud and clear, Jack. I've got a procedure for —

Jack Lousma (CAPCOM)

I have an activation procedure. I'd like you to copy it down.

Jim Lovell (CDR)

How long is it, Jack?

Jack Lousma (CAPCOM)

It's just four lines. Go to Activation 1, do step 3. Go to Activation 11, omit step 1. Do Activation 12, and then go to Activation 13 and do step 1. Do you copy?

Jim Lovell (CDR)

Okay. Is that Activation 1? Do step 3. Is that correct?

Jack Lousma (CAPCOM)

That's affirmative, Jim.

Jim Lovell (CDR)

Activation 11, omit step 1, do the rest. Is that correct?

Jim Lovell (CDR)

Do Activation 12 and Activation 13, step 1.

Jack Swigert (CMP)

Okay, Jack. Pressure in tank 1 is approaching 100 psi. What's going to be the symptoms of this fuel cell starting to drop off?

Jack Lousma (CAPCOM)

Stand by, Jack. We'll get the word on that.

Jack Lousma (CAPCOM)

And, Jim, when you get to the end of that procedure, we'd also like to have you put the DEMAND REGs to CABIN.

Jim Lovell (CDR)

DEMAND REGs to CABIN. Roger.

Jim Lovell (CDR)

Jack, was that Activation 1, step 3 only, or all of Activation 1?

Jack Lousma (CAPCOM)

That's go all the way down to step 3, Jim.

Jim Lovell (CDR)

Activation 1 to step 3. Roger.

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Spoken on April 14, 1970, 4:36 a.m. UTC (54 years, 6 months ago). Link to this transcript range is: Tweet

Jim Lovell (CDR)

Houston, Apollo 13. Never mind.

Jim Lovell (CDR)

Oh, we were curious about Activation 11 on the VHF.

Jim Lovell (CDR)

— … Jack. It's got—Okay.

Jack Lousma (CAPCOM)

Jack, this is Houston. We want you to keep the IMU up and keep the lights on so you can see in there, and leave battery off—battery A off and, at the appropriate time, we'll put it on MAIN A. And we're going to keep the IMU up so's we can get a coarse aline in the LM.

Jack Swigert (CMP)

All right. Real good. Right now, we're charging battery A. Do you want to discontinue that?

Jack Lousma (CAPCOM)

Discontinue the charge on battery A, Jack.

Jack Swigert (CMP)

Okay, Jack. I discontinued charge on battery A. You give me the call and I'll turn BUS TIE AC on.

Jack Lousma (CAPCOM)

Roger. And we want you to keep the lights up and the IMU on.

Jack Lousma (CAPCOM)

And, Jack, we'd like you to leave the COMM configuration as is until we get COMM with the LM.

Jack Lousma (CAPCOM)

And, 13, this is Houston. I've got another procedure for the LM. A short one.

Jim Lovell (CDR)

Okay. Ready to copy, Jack.

Jack Lousma (CAPCOM)

Okay. On panel 11, we'd like you to close the LGC DSKY circuit breaker. Then we want you to go to Activation 25; do steps 1, 2, and 3. Then go to Activation 30, and that will give us a docked IMU coarse aline. Over.

Jim Lovell (CDR)

Roger. Panel 11, close LGC circuit breaker. Activation 25, do steps 1, 2, 3, and then do complete Activation 30. Is that correct?

Jack Lousma (CAPCOM)

That's affirmative. On panel 11, LGC DSKY circuit breaker closed.

Jack Lousma (CAPCOM)

And in the LM, let's go to panel 11 and close the SUIT FAN circuit breaker and get suit fan 1 cranked up.

Jim Lovell (CDR)

Okay. Panel 11, close SUIT FAN circuit breaker, and we'll get the suit fan cranked up.

Jack Lousma (CAPCOM)

And, Jack, in the CSM, go to BYPASS on the radiators and turn your GLYCOL PUMP off.

Jack Swigert (CMP)

Okay. Pull the BYPASS; GLYCOL PUMP going off.

Jack Lousma (CAPCOM)

And, 13, in the CSM, we want to verify that all the fuel cell pumps are off, and we want to have you turn off the O2 fans in the tank 2.

Jack Swigert (CMP)

Okay. Tank 2 fans going off. Okay. That leaves me with tank 1 fans on the tank 1 heaters on.

Jack Swigert (CMP)

Fuel cell 2 pump going off now.

Jack Lousma (CAPCOM)

Jack, leave them both on in tank 1.

Jack Lousma (CAPCOM)

13, Houston. We've got AOS on the LM here.

Jack Lousma (CAPCOM)

And, 13, this is Houston. In the LM, we'd like to have 12, step 3, which is get the batteries on high taps. Over.

Jim Lovell (CDR)

How you going there? Activation 12, step 3.

Fred Haise (LMP)

Okay. And, Jack, how do you read from Aquarius?

Jack Lousma (CAPCOM)

Aquarius, Houston. Say again, please.