Spacelog Apollo 13

Okay.

Okay. Next, panel 3: TRANSPONDER, PRIMARY; POWER AMPL, to PRIMARY, that's a verify; POWER AMPL, HIGH; MODE, VOICE, to OFF; POWER, SCE, to NORMAL; PMP to NORMAL; S-BAND ANTENNA, OMNI D, that's Delta. Okay, why don't you read that one back?

Okay. On panel 3: TRANSPONDER to PRIMARY; POWER AMPLIFIER to PRIMARY; POWER AMPL, HIGH; MODE, VOICE, to OFF; POWER, SCE, to NORMAL; PMP to NORMAL; S-BAND ANTENNA, OMNI D, D as in Doggy.

Hey, very good. Okay, panel 225: circuit breaker FLIGHT BUS, MAIN B, to close; circuit breaker CTE, MAIN B, to close. Panel 250: CB BAT C BAT CHARGER/EDS 2 to close.

Hey, Vance, just a minute. Slow down, would you?

Okay.

Okay. I got distracted here. On panel 225: CB FLIGHT BUS, MAIN B, close; and then I lost you after that.

Okay. Let me give you all of panel 225 again. CB FLIGHT BUS, MAIN B, close; CB CTE, MAIN B, close. On panel 250: CB BAT—B BAT CHARGE, that should be BAT C, Charlie, isn't it? BAT CHARGE/EDS2 closed?

That's right. That's —

CB BAT B POWER ENTRY -

Okay. That should be BAT Charlie.

Let me finish. Okay. That's what I thought. BAT Charlie BAT CHARGE/EDS2, close; BAT Baker POWER ENTRY/POSTLANDING, closed. On panel 275: CB MAIN B, BAT BUS B, closed; CB INVERTER POWER 2, MAIN B, closed.

Okay. That's correct except for the second circuit breaker on panel 250, which is CB BAT Charlie POWER ENTRY slash POSTLANDING, close.

Okay. BAT Charlie POWER ENTRY/POSTLANDING.

Okay, now back to panel 250. CB BAT Bravo POWER ENTRY/POSTLANDING, close. Next, MDC 3, AC INVERTER 2 to MAIN B. AC INVERTER 2, AC BUS 1, on up. Next, panel 5: AC INVERTER AC BUS 1 to RESET and then center. Panel 3: UP TLM to COMMAND RESET then OFF. Then select best OMNI. Readback, please.

Okay, Vance. The following steps are sequence critical. Panel 250: CB BAT B POWER ENTRY/POSTLANDING, closed. That's BAT Baker. MDC 3, AC INVERTER 2, to MAIN B; AC INVERTER 2, AC1, on. …

How do you read now, Jack?

Okay, Vance. Did you—how far did you—did you copy any of my steps there?

Okay, I heard you through AC INVERTER 2, AC BUS 1 to on, and you were cut out by noise. Go ahead.

Okay, Now comes to one I didn't understand. You said go over to MDC 5 and A in—AC INVERTER, AC BUS 1, RESET, then center, and then back to MDC 3; UP TELEMETRY, COMMAND RESET then OFF, and then select best OMNI.

Roger. The readback's correct, but let me recheck that. Stand by.

Jack, we were incorrect on panel 5; that should have been panel 3.

Okay, that's good. I got it.

Okay. Now, when you're in this configuration, the following onboard readouts are required. Panel 3: BAT C voltage, PYRO BAT A voltage, PYRO BAT B voltage, SPS HELIUM PRESSURE. And the following readouts on panel 101: CM RCS injector temperatures, those are positions 5 Charlie, 5 Delta, 6 Alfa, 6 Bravo, 6 Charlie, 6 Delta; and the battery manifold pressure, which is 4 Alfa. And standing by for readback.

Okay. You want me to read out on MDC 3: BAT B voltage, PYRO A voltage, PYRO B voltage, SPS HELIUM PRESSURE. On panel 101: command module RCS injector temperatures; 5 Charlie, 5 Dog, 6 Alfa, 6 Baker, 6 Charlie, 6 Dog. The battery manifold pressure, 4 Alfa.

Okay. Now—that was correct but I want to re-check the very first one, that was BAT Charlie voltage. Is that what you read back?

Okay. Okay, BAT Charlie voltage. Seems like we're having a difference—I can't understand BAT Charlie from BAT Dog.

Okay. Now, that—that complete procedure for getting into it, as far as getting into it's concerned. What I will give you now is how to back out of it after you're through with your readings. Are you ready to copy?

Okay.

Okay. Now you'll back out fairly quickly after you go into this procedure. All we'll need is about 5 minutes of TM, and so if you're ready to copy, here it comes.

Go ahead.

Panel 3: POWER AMPL to OFF. Incidentally, copy this down on a piece of scratch paper as I read it, and then later I'll refer back to your first list where you can write things in the right-hand margin.

Okay.

Okay —

Okay. The two switches—two circuit breakers on panel 250 will go back to open; the two circuit breakers on panel 275 back to open; the POWER ENTRY/POSTLANDING circuit breaker, we already took care of earlier; AC INVERTER 2; we took care of earlier; AC INVERTER 2 to AC BUS 1 will go to OFF; and AC INVERTER, AC BUS 1, we took care of—No, that'll go to OFF; and UP TELEMETRY, COMMAND RESET will go OFF.

That's correct, Jack. Okay, that's it. And I think we're about ready to go with this procedure whenever you are.

Okay. First we got to go through that procedure to power the CSM from the LM, is that Charlie?

No. No, this is independent of power from the LM. This is a—this is purely a CSM —

Okay.

This is purely a CSM powerup so we can take a look at your telemetry and see how cold the vehicle is and that sort of thing.

Okay. It's going in work.

Okay, now I won't—I won't have any voice with you, so—Is that right? You don't want me to get connected up—you want me to just take these readings and come back and tell you what I have, huh?

That's affirm. There'll be no voice. And —

Okay. Okay. In work.

I—we presume, though, that there'll be somebody in the LM that we can call if we have to get word to you.

Oh, yes. There'll be somebody to be standing by, they'll run up into the bedroom and tell me to stop what I'm doing.

Okay, and let us know when you start.

Okay. I'm going to start right now, Vance.

Okay.

Aquarius, Houston.

Aquarius, Houston. Over.

Okay, Houston; Aquarius. Switching watches, and Jack's going up into the command module.

Okay, Jim. We have four steps here to give you to request that you get back on DOWN VOICE BACKUP, if you're ready to copy?

Ready to copy.

Okay. Bit rate to LO bit rate. VOICE, FUNCTION switch to DOWN VOICE BACKUP. POWER AMPs CB, open; RANGE FUNCTION switch in RANGING; that's verify.

Okay. Bit rate, LO; VOICE FUNCTION, DOWN VOICE BACKUP; POWER AMP S-BAND, open; and RANGE FUNCTION to RANGE; and that's a verify. And I still have the BIOMED on RIGHT here, so we don't have hot mike.

Okay. Thank you.

And, you want that in work, now?

That's affirm.

Okay.

Okay. Houston, Aquarius. How do you read?

Loud and clear, Jim.

Okay. I have a question for you, Houston, if you have time.

Sure, go ahead.

And I'm copying down the reestablishing—PTC maneuver that Charlie gave me. Step 5 was, “When rates are less than 0.05 degrees per second, ATTITUDE CONTROL YAW to PULSE.” And just how am I to get my rates down to 0.05 degrees per second. My—My rate indicator, at the best, is 0.1 of a degree.

Stand by.

Aquarius, Houston.

Go ahead.

Jim, this has been tried in the simulator by Charlie and others, and what they recommend is that you null your rates on the error needles until you see no movement whatsoever, and then wait another couple of minutes, and that should do it. That's the only way we can tell. Over.

Okay. I'll give it the old college try.

Okay. And if you can't attain that, why, of course, just the best you can do. We'll have to give it a try. Maybe it won't be quite like the simulator.

Okay, Houston; Aquarius.

Go ahead, Aquarius.

Okay, Vance. I've gone all the way through your procedure—all the way down to “Select best OMNIs,” but I'm not getting any MAIN BUS B voltage and this I don't understand.

Roger.

I can read—I can read BAT—BAT BUS B voltage at 36.5. …

Okay, Jack. Do you read now?

I am not sure, Vance.

Okay. You faded out due to noise in the orientation. If you close the POWER AMP circuit breaker, we can hear you better. Over.

That's panel 16.

Okay.