Spacelog Apollo 13

Right-o.

Aquarius, Houston.

Aquarius, Houston.

Go ahead, Houston.

Jim, on the battery problem, we have determined that it is not overcurrent or reverse current. We suspect it's over-temp, but don't know for sure, so we're going to watch it for awhile.

Aquarius, Houston.

Go ahead, Houston.

Jim, Charlie has some procedures to read up for you here; I think you'll need your activation checklist, if it's handy.

Aquarius, that's the contingency checklist.

Okay. I'll just—Okay. Stand by, Charlie.

Okay, Charlie. I've got the contingency checklist, and standing by.

Okay, Jim. We'd like you to turn to page—page 24, which is the “30-Minute Activation,” and this is going to be a procedure for the mid-course burn that we got coming up at 105 with the AGS up. Over.

Roger. On the midcourse at 105, and I'm on page 24.

Okay; “30-Minute Activation,” omit steps 1, 2, and 3; perform step 4, “RCS system A/B-2.” Over.

Roger. Omit steps 1, 2, and 3; perform step 4.

Roger. And on the “EPS Activation,” same page, perform step 1; and in step 2, perform line number—line number 6, “EPS DISPLAY-CLOSE.” Over.

Okay. On “EPS Activation,” perform step 1, and perform step 2, line 6 only; is that correct?

That's affirmative, Jim. The rest of the stuff is already closed at this time, so that's all we'll have to do is close the EPS DISPLAY breaker.

Okay.

All right. Turn to page 25. On page 25, omit step 3; perform step 4. On step 4, last line, scratch “CB(16) EPS: INVERTER 2, closed.” Over.

Roger. Omit step 3; perform step 4, except for the last line. Circuit breaker 16, EPS INVERTER 2, closed.

Roger. That's correct. On step 5, perform step 5. Under “Primary Glycol Loop Activation,” step 1, line 1, “CB(16) ECS: DISPLAY—CLOSE.” That's a crew option; you can have it if you want to. Omit the rest of step 1 and step 2. Perform step 3. Over.

Okay. On row 1, AC BUS A: TAPE RECORDER and DECA GIMBAL will be open. All the rest as shown.

Roger. And we don't know the status of your windows. If you—During this burn, we're going to have to look out the forward window to get the alinement with the COAS, so you might need the commander window heater and you can, of course, use that breaker if needed, since we do have the AC power. On row 2—Go ahead. Over.

I don't think we'll need it, Charlie.

Okay; fine, Jim. On row 2, under RCS SYSTEM A: ASCENT FEED 2 and ASCENT FEED 1 should be open. Under FLIGHT DISPLAYS: MISSION TIMER should be open; GASTA, open; ORDEAL, open. Under AC BUS A: GASTA, open. The rest are as shown on the page. Over.

Okay. On row 2, we're going to open up ASCENT FEED 2 and ASCENT FEED 1 under RCS SYSTEM A. We're going to open up the MISSION TIMER, and FLIGHT DISPLAYS: the GASTA and the ORDEAL; and the AC BUS A: the GASTA.

That's affirmative. Okay. Row 3, under PROPELLANT: DESCENT HELIUM REG/VENT should be open. Under HEATERS: RENDEZVOUS RADAR STANDBY, open; LANDING RADAR, open. Under STAB/CONTROL: ATCA (PGNS), open. Under ED and LIGHTING: all four open. Over.

Okay. Row 3, under PROPELLANT—propulsion: the DESCENT HELIUM REG/VENT will be open: the STANDBY RENDEZVOUS HEATER will be open and the LANDING RADAR HEATER circuit breaker will be open. I just changed antennas; and, keeping on down the line, ATCA PGNS will be open and the last four circuit breakers, two under ED and two under LIGHTING, will be open.

That's affirmative. Okay. Under row 4, under ECS: GLYCOL PUMP AUTO TRANSFER, close. Under COMM: UP DATA LINK, open; VHF B and VHF A should be open. Under PGNS: LGC/DSKY, open; IMU OPERATE, open. Over.

Okay. Under row 4, the AUTO TRANSFER will be close. UPDATA LINK, open; VHF A and B, open; DSKY, open; and IMU OPERATE, open.

That's affirm. On the last row, the only DELTA is under the CROSS TIE BUS and it should be open. Over.

Say that again, Charlie.

Okay. Under the last row, under EPS is the only DELTA and that is under the CROSS TIE BUS. It should go open. Over.

Roger. The CROSS TIE BUS should go open.

That's affirm. Going on to page 27, Activation, panel 16. Under RCS SYSTEM Bravo: ASCENT FEED 1, ASCENT FEED 2 should be open. Under PROPULSION: PQGS should be open; ASCENT HELIUM REG, open. Over.

Okay. Line 1, on panel 16, ASCENT FEEDs 1 and 2 will be open. And the PQGS will be open, and the ASCENT HELIUM REG will be open.

That's affirmative. On the next three rows, we only get the nine DELTAs, so I'll go through the next three rows completely and then you can read those back. Under LIGHTING —

Okay.

Under LIGHTING; FLOOD, open; TRACK, open. Under ED LOGIC—Correction, under ED: LOGIC, open. Under STAB/CONTROL: DESCENT ENGINE OVERRIDE, open. Under ECS: SUIT FLOW CONTROL, open. Under row 3, COMM: DISPLAY, open; VHF A TRANSMITTER, open; VHF B RECEIVER, open. Under ECS: DISPLAY, that's crew option. Last row, under EPS: INVERTER 2, open. Over.

Okay. On the last three rows, we have FLOOD and TRACK circuit breakers, row 2, open; LOGIC POWER B, open; DESCENT ENGINE OVERRIDE, open; SUIT FLOW CONTROL, open. On the third row—row, DISPLAY, open; VHF A and—VHF—VHF A TRANSMITTER, open; VHF B RECEIVER, open. And under ECS: we have DISPLAY, open, at crew option. And the last one, INVERTER 2 under EPS, will be open.

Roger. That's a good readback. Under that ECS DISPLAY, it shows it closed. If, with it closed, you can have some readout of—onboard readout of your ECS system—draws a lot less than a half amp so it's up to you whether you want it or not. Okay, on page 28.

Roger.

On page 28, step—perform step 4 with the following changes in the warning light status. Under the warning lights, you will probably—you will have ASCENT PRESSURE and an LGC light. Scratch “RCS A and RCS B REG.” Under caution lights, you'll have a PRE AMPS light. Over.

Roger. Under warning, we'll have ASCENT PRESSURE and LGC; and under caution, we'll have a PRE AMP.