Spacelog Apollo 13

Okay, Fred. We still don't have a final answer on whether or not it'll leak. If you need it, I'd go ahead and use it; and standing by for your completion of the hose-insertion procedure.

Okay. The hose-insertion procedure … the second cartridge is complete.

Okay. That's complete. The next step is to switch to the primary CO₂ canister and remove the secondary canister and stow it. Over.

Okay. I'm going to have to get off COMM here; I'll let Jack get the headset.

Okay.

Hey, Joe. I'm on the headset now.

Is that secondary? … secondary?

Both cartridges are out.

Okay, Joe. Fred has the secondary cartridge out. We're back on primary now.

Okay, Jack. The next step is to place the command module canisters with the hoses attached in a suitable location to permit the bottom of the canister to be exposed to free airflow and tape them in place. Ideally, well, it doesn't matter. Just—just pick out your own spot.

Okay. I'm going to tell you where they are. They're both situated, as you say, with the bottom of the canister exposed to free air, and one is sitting right by the—the LMP's is sitting right by the EPS panel, and the CDR's is up in the tunnel.

Jack, Houston. The COMM got real noisy there, and I didn't copy that. Stand by a moment.

Okay, Joe. How do you read now?

Okay. That's real good, Jack; go ahead.

Okay. The canisters are situated as you—as you would like with the bottom of the canister exposed to free air.

Okay.

The position of the LMP's canister—The LMP's canister is sitting on the EPS panel now, and the CDR's canister is positioned up in the tunnel.

Okay. Real fine, Jack. The next step is to physically separate both blue hoses a good distance away from the canister so that we don't short circuit the flow, and tape them in place; and the ideal location for them would be up in the tunnel so as to get some flow into the command module. Over.

Both hoses in the—up into the command module?

Oh, you can use your judgment on that, Jack. We'd like at least one, and the recommendation that I got was to put them both up in the tunnel.

Okay. We have the LMP's blue hose up by the LMP's window and the—Of course, the red hose is separated by some 4 feet. And the—Okay. We're going to—and the other hose—the—has the extension on it—The CDR's blue hose, of course, has the extension on it, and it's blowing way up in the command module. And the red hose is about—Oh, it's right at the docking ring where the blue latches are, so there's about 4 or 5 feet difference from there, too. Is this satisfactory?

Okay, Jack. That sounds satisfactory. The next steps are—are suit-loop configuration steps, and the first one is to —

Okay. SUIT DIV —

— is to place the SUIT DIVERTER valve to the PULL EGRESS position.

Okay. SUIT DIVERTER valve to PULL EGRESS.

That's affirmative —

That's done —

Okay. The next step is CABIN GAS RETURN to EGRESS. Over.

…

Okay, Jack. Did you copy CABIN GAS RETURN to EGRESS? Over.

No, I didn't get that, Joe. CABIN GAS RETURN to EGRESS.

That's correct.

Okay. That's done.

Okay. Next, SUIT CIRCUIT RELIEF to CLOSE. Over.

SUIT CIRCUIT RELIEF to CLOSE.

Roger.

Okay. I got that done.

Okay. And the last step is select secondary CO₂ canister. We'll let it flow through the empty hole, and let's see how we do.

Select secondary CO₂ canister.

Roger, Jack. That completes that procedure, and the next thing I've got for you is a procedure for going back into the command module and powering up the main buses temporarily using the BUS TIE switches. We want to do this for two reasons: first of all, we want it absolutely verified that there are no loads on the main buses, that we've got everything off and that the buses look good; and the second thing we want to do is to power the bus—the main buses, with the BUS TIE motor switches, and then depower them by pulling the circuit breakers, leaving the MAIN BUS TIE switches in the on position, just to assure that they'll be there when we need them, whether the batteries get cold or not. Over.

Okay, Joe. How you read?

Better now, Jack. Satisfactory. Did you copy my rationale for the main bus powerup?

Yes, I did. You want to remove—You want to power up both buses, with the BUS TIE motor switches; first of all, to see that there are no loads on the buses, and second, and then depower the buses by pulling the circuit breakers to insure that the motor switches don't—that the BUS TIES stay on so that they're there when we need them.

That's correct, Jack. Are you ready to copy the procedure?

Okay. Go ahead.

Okay. As the first step, I have one change to the basic configuration that we gave you, and it's two more circuit breakers that we want open. On panel 225—Are you ready to write that down? Over.

Okay. That's BAT CHARGER BAT A CHARGE, BAT CHARGER BAT B CHARGE, both closed on panel 5.

That's affirmative. We need them closed to power the switches. Next on panel 5, we want the EPS SENSOR SIGNAL MAIN A and MAIN B circuit breakers closed. Over.

Okay. Panel 5, CB EPS sensor's signals MAIN A and MAIN B closed.

Okay. That's affirmative. We need them closed so that you can read out your volts and amps. Next step, on panel 250, we want circuit breaker BAT A POWER ENTRY and POSTLANDING and BAT B POWER ENTRY and POSTLANDING, closed. Over.

Okay on panel 250, CB BAT A POWER, ENTRY and POSTLANDING, closed; BAT B POWER ENTRY and POSTLANDING, closed.

That's affirmative. And at that point, we'd like you to check the BAT bus voltages on both BAT buses to make sure we don't have any shorts. Over.

Okay. Read the BAT bus voltages on BAT BUS A and BAT BUS B.

That's affirmative. The next step on panel 275: circuit breaker MAIN A, BAT BUS A, closed, and circuit breaker MAIN B, BAT BUS B, closed. Over.

Okay. On 275, circuit breakers MAIN A, BAT BUS A, closed; MAIN B, BAT BUS B, closed.

That's affirmative. The next step on panel 5: we want the MAIN BUS TIE A/C switch to the BAT A/C position, and verify proper voltage on MAIN BUS A, and read the amps on BAT A to make sure we don't have a short. Over.

Okay. …

Okay, Jack; Houston. We're in bad COMM again; let's wait a minute.

Okay. How do you read …?

That's better, Jack. Go ahead with your readback.

Okay. Place MAIN BUS TIE A/C, on, read MAIN BUS A current and voltage.

Okay. That's affirmative. The next step will be the MAIN BUS TIE B/C switch to the on position and read MAIN B voltage and battery B amperage as above. Over.

Okay, MAIN BUS TIE B/C on; read MAIN B voltage and current.

Okay. That is correct. Then to reconfigure from this configuration, Jack, we want you to leave the MAIN BUS TIE switches in the on position and pull the circuit breakers out in reverse order that we had you close them. Over; and do you want me to read them up individually?

No, let me see if I've got it here. I go down to panel 275, open CB MAIN A, BAT BUS A and CB MAIN B, BAT BUS B. Then I go down to 250, and pull CB BAT A POWER ENTRY/POSTLANDING and BAT B POWER ENTRY/POSTLANDING and then up on panel 5, pull EPS SENSOR SIGNAL MAIN A, SENSOR SIGNAL MAIN B, BATTERY CHARGER BAT B CHARGE, BATTERY CHARGER BAT A CHARGE. And then close—I don't know whether you want me to close the RENDEZVOUS RADAR TRANSPONDER FLIGHT BUS and S-BAND TRANSMITTER/DSE FLIGHT BUS.

Okay, Jack. We don't want you to close those last two. Those are changes to your basic configuration, and we want to leave them open for now. Over.

Okay. I'll do that. Was the rest of the readback okay?

That's correct. Readback was 100 percent, and we'll wait to hear from you.

Okay, Joe. And just for confirmation, I went through the switch list you gave me. We are in exactly that configuration with one exception, and that is over on panel 382. I have not, the a—H₂O ACCUMULATOR is in the OFF position so that if we need any more water, we can get it.

Okay. Roger, Jack. Copy that. On panel 382, you've left the H₂O ACCUMULATOR valves in the OFF position, and we concur.

Okay. And there's one other thing that I don't know whether you're aware of. We have no lithium hydroxide canisters in panel two fif- in—canisters now. So when we get ready to power up, you'll have to remind us when you want us to add some.

Okay, Jack. We copy that. That's correct, and I'll add that to our basic checklist so that we won't forget it.

Okay. Real fine, Joe, and I'm on my way back into the command module.

Good deal.

Thank you.

How do you read, Joe?

And, Joe, how do you read Aquarius?

Aquarius, Houston. Pretty good. Go ahead.

Okay. I'm back on the line now, but Jack really … headed back to the upstairs bedroom.

Okay. Roger that, Fred.

Aquarius, Houston. Over.

Go ahead.

Okay, Fred. We recommend that you push your MASTER ALARM circuit breaker in so you'll have audio and visual on that, and, also, we medical types are getting to feel left out down here, and we'd like you to give us BIOMED … position, if you're plugged in for it, and we'll see whether it affects the voice or not. Over.

Okay.

Hey, Houston; Aquarius. On DOWN VOICE BACKUP S-band, how do you read me?

Aquarius, Houston. Read you now satisfactory.

Okay. And that's my …

Okay. Thank you very much, Fred.

Actually, a good deal of that little power pack heats up and …

Houston, Aquarius.

Aquarius, Houston. Go ahead.

Okay, Jack just … himself back down. And after he put on the 250 BAT A, BAT B breakers, he read BAT bus volts as 32.3 on A, 37.0 on B; he then punched in the 275 breakers, which tied the batteries to the buses, and at that time he read the A bus volts 32.0 on A, zero amps; 37.0 on B, zero amps.

Aquarius, Houston. The COMM got noisy there, and I want to make sure we get these numbers right, so I'd like to ask you to repeat them …

Okay. How do you read now, Joe?