Spacelog Apollo 13

… But we're in this wobble.

Hey, Aquarius; Houston. How do you read me?

Aquarius, Houston. Okay. Go ahead.

Okay, Joe. It—Our wobble in this PTC has picked up where the Moon is running by pretty high in the window and the Earth pretty low; so I expect—On the side where the Moon's present, we're having a little bit of trouble with the COMM … breakout there in a couple of places.

Okay. Roger that, Fred.

… pressure gage as far as the noise … get the thing from the AFT. …

Houston, Aquarius.

Aquarius, Houston. Go.

Okay, Joe. I'm all set to copy that procedure for powering up the command module from the LM, whenever you want to give it to me. When did you, I guess you want to put battery A out of the CHARGE, huh?

Jack, we're not certain when the best time is to implement this procedure, and what we want to do at this time is read it up to you, so you'll have it and understand it and we'll—We'll be able to do it quickly when the time comes. And I don't have it for you quite yet. Over.

(Laughter) Okay. All right. I'll be standing by to copy it whenever you get it.

Okay, Jack.

Aquarius, Houston. Over.

Joe, I got to switch antennas here. Okay, Joe, I read you on the FORWARD antenna.

Okay, Jack, I have the procedure now to read up to you. Before I do, I want to mention something that will be of interest to Fred. We are looking at the SHe tank pressure rise and we expect it to blow. We don't know exactly what time it will go, somewhere around 105 hours or perhaps later than that. We've got plenty of blowdown capability. We just thought you ought to be informed.

Okay. Stand by. I'll tell him, now.

Okay.

Fred, they said they're looking at the SHe tank pressure rise, and they expect it to blow somewhere around 105 hours … Okay. Fred thought they did. …

Okay. Real fine. Are you ready for the procedure, now, Jack?

Yes. Joe, how long is it? Is it a big long one, or a short one, or a medium sized … about how many pages?

It's about—I'd say 15 to 20 steps, Jack. Some of it is LM stuff, and the rest of it is in CSM.

Okay. I got a fresh page here, and I'm ready to copy.

Okay. I'll give you the LM steps first. They have to be done first, and the first step is on panels 11 and 16, circuit breakers ASCENT CA, ASC ECA, two to close.

Okay. Panels 11 and 16 CBs ASCENT ECA to closed.

Okay. Next step: panels 11 and 16 CB ASCENT ECA CONTROL, two, to close. Over.

Okay. On 11 and 16 CBs ASCENT ECA CONTROLs to close.

Okay. That's correct. The next step is BAT 5 and 6 NORMAL FEED to high; those are switches.

Okay. BATs 5 and 6 NORMAL FEED, ON.

That's correct. Next step: BATs 1 and 3 to OFF slash RESET. Over.

BATs 1 and 3 to OFF slash RESET.

That's correct. Next step: wait 30 minutes for preconditioning.

Okay. That's wait 30 minutes for preconditioning.

That's correct, and the last LM step for now is BATs 2 and 4 to OFF/RESET.

Okay. BATs 2 and 4 to OFF/RESET.

That's correct. Now we'll go to the CSM, and the first step there is connect LM/CSM umbilical. Over.

Okay. Connect LM/CSM umbilical.

Okay. The next step, on panel 5, CB LM POWER-1 MAIN B and LM POWER-2 MAIN B, both, closed. Over.

Okay. On panel 5, CB LM POWER-1 MAIN B and 2 MAIN B, both, closed.

That's correct. On panel 5, CB EPS SENSOR SIGNAL MAIN B to close. Over.

EPS SENSOR SIGNAL MAIN B closed on panel 5.

That's correct. Next step, panel 250: CB BAT C POWER ENTRY/POSTLANDING; closed. Over.

Okay. On panel 250: CB BAT B POWER ENTRY/POSTLANDING, closed.

That's Charlie. Verify MAIN BUS voltage; then, LM POWER switch on panel 2 to CSM. Over.

Okay. That's verify the MAIN BUS voltage, and switch LM POWER to CSM.

Okay. That's correct. Then go back to 275, CB MAIN B BAT BUS B to open. Hey, Jack, that's the step I skipped for you, I'm afraid. Before verifying MAIN BUS voltage, you have to, on panel 275, close CB MAIN B BAT BUS B. Over.

Okay, Joe. How are you reading on the AFT OMNI.

You're okay now. Go ahead.

That's right. Then you go to verify MAIN BUS voltage, LM POWER to CSM, and then, on panel 275, circuit breaker MAIN B BAT BUS B to open. Over.