Spacelog Apollo 13

Okay, Jack, are you monitoring the quad temps in quad A—package temps?

Affirmative.

13, this is Houston. We'd like to power down just a little bit more, so let's get BMAG 2 OFF; and make sure your lights are down. Over.

Okay. The lights are down, and BMAG 2's going from STANDBY to OFF.

13, Houston —

Okay, Jack, now I've got a rate -

— we'd like you to open circuit fuel cell 3.

Open circuit fuel cell 3.

Go ahead, Jack.

Okay, fuel cell 3 is off the line now.

And 13, Houston. We'd like you to turn all your Bravo thrusters OFF; and put all your Delta thrusters on MAIN A, please.

All Delta thrusters on MAIN A and all Bravo thrusters OFF. Roger.

13, Houston. Turn BATTERY A OFF —

Okay, Jack, …

…

That's right; we were pulling current all the time.

BATTERY A OFF. Roger.

Now you're … up.

I'm transmitting. I don't have any current now.

Hey, it's off—it's off. They—they killed the bus completely now.

13, Houston. We'd like you to isolate your O₂ surge tank. Over.

Surge tank off now, Jack? Okay, Jack, are you copying—O₂ tank 1 cryo pressure?

That's affirmative. And we're trying to get power to that tank. Stand by; we're working on it.

Okay.

Okay. We had a—SERVICE MODULE RCS B light, jack, due to package temperature.

SERVICE MODULE RCS B. We copy. No problem.

Let's read you the lights we got on now; CRYO PRESS, FUEL CELL 1, FUEL CELL 3, MAIN BUS B UNDERVOLT, SUIT COMPRESSOR.

Roger, we copy them and we'd like to build up the pressure in O₂ tank 1, so turn the heaters on manually; we'll watch the pressure for you.

Okay, do you want to see —

Go ahead.

— We're going to get a MAIN BUS A UNDERVOLT, probably.

Roger. We realize that; we feel we can stand 5 more amps on it.

Okay.

Okay, heater on tank 1's ON.

13, Houston. We'd like you to additionally bring on the fans in O₂ tank 1, and we can stand the additional amperage on that.

13, Houston. We'd like you to check some circuit breakers on panel 226. CRYO O₂ HEATER number 1 MAIN A, and check the three CRYO FAN MOTORS, TANK 1, three phases.

Okay, Jack. 226 is configured just like it should be. I got three REACS breakers and three RAD breakers open. All the rest are closed.

Okay, Fred. Thank you.

Jack, looking outside, the number of particles has diminished greatly, almost ceased now, which indicates maybe what was venting has almost stopped.

Roger, Jack. Thank you. We copy.

I'm still getting some rates in negative pitch, though.

Roger.

And, 13, we'd like to verify that both BMAGs are off, please.

Negative. We just have one BMAG. BMAG number 1 is still on.

Okay, Jack. Let's take BMAG 1 off.

Okay. BMAG number 1 off now.

13, this is Houston. We'd like you to give us a survey of your displays on MDCs 1 and 2. Give us gage readings and talkbacks. Over.

Okay. We'll start with display number 1.

Okay, Jack. On MDC 1, there's nothing abnormal. All the rate indicators are zero. Ball number 2 is frozen, of course; we lost MAIN B. I've got—Ball number 1 appears to be working normally. Right now I'm sitting at roll 0, pitch 180, and yaw about 13 degrees. I'm going to try and hold 0, 180, and 0.