Spacelog Apollo 13

Fred, one—one point on the PTC requests that, about an hour or less from now when you make your 90-degree change, that you do it in PGNS AUTO as opposed to ATT HOLD. Reason is that if you're in ATT HOLD, it establishes a new null point each time you stop the—the maneuver. Over.

Okay. You want us to make the maneuver with PGNS AUTO rather than the PGNS ATT HOLD. Is that right?

Yes. That's correct.

And, Fred, advise that it—it is a manual maneuver.

13, Houston. You'd be using X-axis override. It will be a manual maneuver, but with the PGNS AUTO mode.

Okay.

And if you're ready to copy, Charlie is going to be on in a minute with some recommended checklist changes for your upcoming burn. Over.

Okay. Stand by 1.

I'm going to erase this.

Hello, Aquarius; Houston. Do you read? Over.

Yes. Stand by 1 …

Okay. Which book are you going to give me some words in, Charlie?

Houston, Aquarius. Which book do you want us to have out? contingency …?

Houston. This is Houston, Aquarius. Say again. Over.

Houston, Aquarius. Which book do you want me to update here, Charlie, the contingency QR DPS?

Okay, Fred-o, we'd like you to get out the contingency checklist; turn to page 1, the 2-hour activation. Over.

Okay. I'm right there.

Okay. On page 1, the only thing we have to do is EPS Activation, step 2, CB(16) EPS: DISPLAY, CLOSE. Over.

Okay. On page 1, we need EPS DISPLAY, CLOSE, under EPS Activation, step 2.

Okay. Turning over to page 2, we'd like you to complete step 5 and step 6 with the following changes. POWER/TEMP MONITOR, AC BUS, INVERTER 2, then INVERTER 1. Fourth line CB(11), EPS: INVERTER 2, OPEN. Over.

Okay, on step number—or page 2, we should do step 5 and modify step 6 second line to read INVERTER 2, then INVERTER 1, to the last line of step 6 CB(11), EPS INVERTER 2, OPEN.

Okay. That will be on CB(16), Fred-o, but it's INVERTER 2 OPEN. Okay, on the Mission Timer Activation. Do step 1, correction, lines 1 and 2. Omit “set mission timer on CSM mark” and insert a VERB 16, NOUN 65, set mission timer. Over.

Okay. We'll do the Mission Timer Activation except we'll set it on VERB 16, NOUN 65.

Okay. Proceeding on to step, correction, page 3, CWEA checkout. Step 1, perform step 1. Warning lights will be ASCENT PRESS, CES AC, and CES DC. Under the caution lights, we may have a heater light. And that's all. Okay, perform—under the circuit breaker 16 —

I can't understand you. I'll switch OMNIs.

Say again. Over.

I'm going to switch to OMNIs here, Charlie, you're starting to fade out.

Understand. Switching OMNIs. Over.

Okay. How do you read? …, how do you read me now?

Okay, you're a little better. How me? Over.

Okay, Houston. Coming in loud and clear. I got your caution/warning checkout, step 1, do; the warning lights we'll have will be ASCENT PRESS, CES AC, CES DC. The only caution lights we may have will be a heater light and go ahead and proceed from there.

Okay, good. The component light, we won't have the H₂O SEP. Okay, on CB(16) right under that, “HEATER DISPLAY, CLOSE,” you can scratch that out. Perform all of step 2 and perform step 4 with the following changes. On panel 11, under AC BUS B, are you ready to copy? Over.

Go ahead.

Okay, under AC BUS B: S-BAND ANTENNA, OPEN; ORDEAL, OPEN. Under AC BUS A: TAPE RECORDER, OPEN. Row 2 under RCS SYSTEM A: MAIN SOV. Starting with a QUAD TCA; all four CLOSED. Under FLIGHT DISPLAYS: CROSS—COMMANDER CROSS-POINTER, OPEN; COAS, OPEN; ORDEAL, OPEN. For row 3 under HEATERS: RENDEZVOUS RADAR STANDBY, OPEN; LANDING RADAR, OPEN. Under STAB/CONTROL: ATTITUDE DIRECT CONTROL, CLOSE. Under ED: LOGIC POWER A, OPEN; and under LIGHTING: UTILITY, OPEN. Are you with me? Over.

Yes. I'm still with you, Charlie; go ahead.

Okay, Fred-o, good show. On row 4, starting with ECS: SUIT FAN 1, CLOSE; GLYCOL PUMP AUTO TRANSFER, CLOSE. Under COMM: VHF B TRANSMITTER, OPEN; VHF A RECEIVER, OPEN. Under PGNS: SIGNAL STRENGTH DISPLAY, OPEN; IMU OPERATE, CLOSE. Under EPS, row 5: CROSS TIE BUS, OPEN; and INVERTER 1, CLOSE. Over.

Okay, stand by just 1.

Okay, panel 11 configuration, top row: AC BUS B, I want the S-BAND ANTENNA, OPEN, ORDEAL, OPEN; AC BUS A, TAPE RECORDER, OPEN. Second row, under RCS SYSTEM A, I want MAIN SOV through QUAD 1 TCA, all CLOSED. COMMANDER'S X-POINTER under FLIGHT DISPLAYS, OPEN; COAS, OPEN; ORDEAL, OPEN. Third row: RENDEZVOUS RADAR STANDBY HEATER, OPEN; LANDING RADAR HEATER, OPEN. Under STAB/CONTROL: ATTITUDE DIRECT breaker, CLOSED; ED: LOGIC POWER A, OPEN; LIGHTING: UTILITY, OPEN. Under ECS: SUIT FAN 1, CLOSED; AUTO TRANSFER, CLOSED. Under COMM: VHF B TRANSMITTER, OPEN; VHF A RECEIVER, OPEN. Under PGNS: SIGNAL STRENGTH DISPLAY, OPEN; IMU OPERATE, CLOSED. Bottom row, EPS: CROSS TIE BUS, OPEN; INVERTER 1, CLOSED.

Roger, Fred. Good readback. Starting with panel 16. Under FLIGHT DISPLAYS, row 1: SE CROSS-POINTERS, OPEN; RCS SYSTEM Bravo—QUAD 1 TCA's, CLOSE; QUAD 2, CLOSE; QUAD 3, CLOSE; QUAD 4, CLOSE. Second row, under LIGHTING: FLOOD is your choice. You can either use them or not. Under ED: LOGIC POWER Bravo, OPEN; ECS: SUIT FLOW CONTROL, OPEN. Third row, under COMM: DISPLAY, OPEN; VHF A TRANSMITTER, OPEN; VHF B RECEIVER, OPEN; S-BAND ANTENNA, OPEN. Fourth row, under HEATERS: DISPLAY, OPEN; under EPS: INVERTER 2, OPEN. And that's it. Readback. Over.

That's affirmative on the gimbals, Fred. Nothing else on page 14. Proceed to page 15, and under “RCS CHECKOUT,” we'd like to scratch that wording and just say “Verify the following switches: GUIDANCE CONTROL, PGNS;” step 3—correction—it's line 3, change “ATTITUDE CONTROL (3)” to “MODE CONTROL;” “MODE CONTROL (BOTH)” to “AUTO.” Verify ACA PROP, LMP ENABLE; ACA/4 JET, LMP ENABLE; TTCA/TRANSLATION, LMP, ENABLE. That is all on page 15. Over.

Okay. On page 15, we'll change the heading “RCS CHECKOUT” to “Verify following switches,” and those switches are “GUIDANCE CONTROL, PGNS;” third line, “ATTITUDE CONTROL (3)” to “MODE CONTROL” now; and then “MODE CONTROL (BOTH)” to “AUTO” and ACA PROP, LMP ENABLE; ACA/4 JET, LMP ENABLE; and TTCA/TRANSLATION, LMP ENABLE.