Jim Lovell (CDR)

Okay, Houston. The center panel—I'm looking at the RCS indicator A. We have a package temperature of about 180. Our helium pressure is 3900. I'm looking at fuel pressure of about 180 and percentage of about, I'd say 85 percent. B is about the same, except that that package pressure is 190. On quad C, we're looking about the same, except that the package temperature is 100. On quad D, we're looking at package temperature of 160. All other indications are about the same. CM pressure—RCS pressure is looking nominal. Helium pressure's up around 4000. And package temperature is about—a little less than 80 on ring 1 and about the same on ring 2.

Jim Lovell (CDR)

And the—talkbacks on the SM RCS, I've got HELIUM 1 now are all gray. HELIUM 2 are all gray. PRIMARY PROPELLANT all gray. SECONDARY PROPELLANT, I've got two barber pole, and A is barber pole, B gray, C barber pole, and D gray. Okay. On the ECS RADIATORS, barber pole is gray. On the—On the ECS, PRIMARY INDICATOR.

Fred Haise (LMP)

Okay, Jack. Starting at the top. Okay. The CRYO TANKS; H2 1 is reading 230 and the same for 2. Our O2 CRYO TANK 1 is—looks like it's barely holding its own at 300. And, CRYO TANK 2 is reading zip. Our quantities: H2 1 is reading 73, 2, 74. On the O2 side, we're reading O2 1 at quantity, 76; O2 pegged to full scale high. RAD TEMPs PRIMARY INLET, we're reading about 55; RAD OUT is reading about 30, and the SECONDARY OUTLET is reading—reading 52 degrees. And the EVAP OUT TEMP is 45, STEAM PRESSURE 0.17, and GLYCOL DISCHARGE 48. SUIT COMPRESSOR is reading zip. The ACCUM is reading 30; H2O WASTE is reading about 34; POTABLE's reading about 98; SECONDARY RAD INLET is reading about 71; and the RAD OUT is about 30; GLYCOL EVAP TEMP is reading 65, STEAM PRESSURE pegged full scale high; DISCHARGE PRESSURE 9 psi.

Jack Lousma (CAPCOM)

Excuse me, Fred; I'd like to butt in here a minute. We'd like to have THRUSTER C-1 off.

Jack Lousma (CAPCOM)

— my last copy is SECONDARY RAD IN.

Fred Haise (LMP)

Okay. Your SECONDARY RAD IN, I gave to you 70—about 72 degrees; the RAD OUT is about 30; the GLYCOL EVAP TEMP is reading about 65; STEAM PRESSURE full scale high, GLYCOL DISCHARGE PRESSURE about 9 psi. The ACCUM—SECONDARY ACCUMULATOR is about 30—34 percent. Our temperatures: SUITS showing about 52 degrees; CABIN about 58 degrees; pressures, SUIT reading 4.1, CABIN at 5. PARTIAL PRESSURE CO2 is up to little over 1, about 1.1. On the SPS side of the house, the temperature is 72 degrees, helium's reading 3500; N2 A is reading 2300; N2 B about 2450. And our ullage pressures: FUEL is reading about 165; OXIDIZER 170. Fuel cells: FUEL CELL 1, both CLOSED, they're zip; SKIN TEMP 405 degrees; CONDENSE EXHAUST is lower scale. FUEL CELL 2—right now we've got an O2 or an H2 FLOW reading of 0.13 to 0.14, and the O2 FLOW is right now pegged full scale high although it has been varying depending on thruster activity which has also given us MAIN BUS A under volts from a steady reading of about 1.1 up to full scale high. The TSKIN is about 445 and the CONDENSOR EXHAUST 17, correction, 180. Let's see if you want it on the DC indicator: FUEL CELL 1 is 0 amps; 2 is reading somewhere between 44 and about—oscillating 44 to 48 again depending on thruster activity.

Fred Haise (LMP)

— is 0 amps. Say again, Jack.

Fred Haise (LMP)

Hello, Houston; Apollo 13. How do you read?

Jack Lousma (CAPCOM)

Okay, 13. This is Houston. It appears to us that we're losing O2 flow through fuel cell 3. So, we want you to close the REAC valve on fuel cell 3. It looks like fuel cell 1 and 2 are trying to hold up okay. You copy?

Fred Haise (LMP)

Are you saying fuel cell 1 and 2—1 and 2 are trying to hold up but we're leaking O2 out of fuel cell 3? And you want me to shut the REAC valve on fuel cell 3? Did I hear you right?

Jack Lousma (CAPCOM)

That's affirmative. Close the REAC valve on fuel cell 3.

Fred Haise (LMP)

Okay. I'll go to the SSR page. Do you want me to go through that whole smash for fuel cell shutdown? Is that correct?

Jack Lousma (CAPCOM)

Okay, 13. We want you to turn the inline heaters off on fuel cell 1. Then we want you to go through the fuel cell shutdown procedure on fuel cell 3. Read back.

Jack Swigert (CMP)

Okay. Shut down the inline heater on fuel cell 1. We're proceeding with the shutdown, special subroutine, for fuel cell 3.

Jack Lousma (CAPCOM)

Okay. You got OMNI Bravo and we'd like to have you verify that the tape recorder is off please.

Jack Swigert (CMP)

That's verified. Okay, Jack. I'm sitting here with an 0618 showing and I can't get rid of it. Oh, stand by just a —

Jim Lovell (CDR)

Okay. Fuel cell 3 REACs off, Houston.

Jack Swigert (CMP)

Okay, Jack. Step 2, special subroutine 1 for the fuel cell procedure, has been completed.

Jack Swigert (CMP)

Okay. Jack. I'd like to bring on jet A-4. I've got null on negative pitch control, and—negative pitch control, and right now neither DIRECT or AUTO coils.

Jack Lousma (CAPCOM)

Okay. You say no pitch in either DIRECT or AUTO? You want to bring on A-4?

Jack Swigert (CMP)

Yes. I've got a positive pitch rate and I can't stop it.

Jack Lousma (CAPCOM)

Okay, Jack. Bring A-4 on; stop the pitch rate.

Jack Lousma (CAPCOM)

And, 13, we need OMNI Charlie, please.

Jack Lousma (CAPCOM)

And, Fred, we would like to have you verify fuel cell reactants talkback is barber pole.

Fred Haise (LMP)

That's affirm. I watched it and it went barber pole as I threw the switch.

Jack Swigert (CMP)

Okay. Jack. Let me give you a thruster configuration right now. Able 1, Charlie 1, Able 2 are off. Charlie 2, MAIN A, all the thrusters that I call that are on are on MAIN A. Baker 1 off. Dog 1 on, Baker 2 off, Dog 2 on. Able 3, Charlie 3, Able 4, Charlie 4 on. Baker 3 off, Dog 3 on, Baker 4 off, Dog 4 on.

Jack Lousma (CAPCOM)

Okay, Jack. That thruster configuration looks okay.

Jack Swigert (CMP)

All right. Okay. Do you want some readings from the systems test meter regarding fuel cells?

Jack Lousma (CAPCOM)

Stand by 1 on that, Jack. Let me ask the EECOM.

Jack Swigert (CMP)

We've got some incompatibilities here.

Jack Lousma (CAPCOM)

Okay, 13. We'd like to have you give us those systems test readings on fuel cell 1 and 3, please.

Jim Lovell (CDR)

Okay. 1 and 3 coming up.

Fred Haise (LMP)

Okay. Jack, 1-A is reading, lower scale, 0; 1-B is reading. 3.45. Okay. You only want fuel cells 1 and 3. Okay. Ignore that 1-B reading. 1-C is reading 3.4. Now, 1-D is reading 2.4. 2-D is reading 0.25.

Jack Lousma (CAPCOM)

Roger, Is that 2 Bravo, Fred?

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.

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 Lousma (CAPCOM)

That's all correct.

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Spoken on April 14, 1970, 4:09 a.m. UTC (51 years, 7 months ago). Link to this transcript range is: Tweet

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.

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.