Fred Haise (LMP)

Key moment "Houston, we've had a problem.": Okay, Houston —

Jack Swigert (CMP)

I believe we've had a problem here.

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Spoken on April 14, 1970, 3:08 a.m. UTC (44 years, 8 months ago). Link to this transcript range is: Tweet

Jack Lousma (CAPCOM)

This is Houston. Say again, please.

Jim Lovell (CDR)

Houston, we've had a problem. We've had a MAIN B BUS UNDERVOLT.

Jack Lousma (CAPCOM)

Roger. MAIN B UNDERVOLT.

Jack Lousma (CAPCOM)

Okay, stand by, 13. We're looking at it.

Fred Haise (LMP)

Okay. Right now, Houston, the voltage is—is looking good. And we had a pretty large bang associated with the CAUTION AND WARNING there. And as I recall, MAIN B was the one that had had an amp spike on it once before.

Fred Haise (LMP)

In the interim here, we're starting to go ahead and button up the tunnel again.

Fred Haise (LMP)

Yes. That jolt must have rocked the sensor on—see now—O2 QUANTITY 2. It—was oscillating down around 20 to 60 percent. Now it's fullscale high again.

Jim Lovell (CDR)

And, Houston, we had a RESTART on our computer and we had a PGNCS light and the RESTART RESET.

Jack Lousma (CAPCOM)

Roger. RESTART and a PGNCS light. RESET on a PGNCS, RESET —

Jim Lovell (CDR)

Okay. And we're looking at our S—SERVICE MODULE RCS HELIUM 1. We have—B is barber poled and D is barber poled, HELIUM 2, D is barber pole, and SECONDARY PROPELLANTS, I have A and C barber pole. BMAG temperatures?

Fred Haise (LMP)

Okay, AC 2 is showing zip. I'm going to try to reconfigure on that, Jack.

Fred Haise (LMP)

Yes. We got a MAIN BUS A UNDERVOLT now, too, showing.

Fred Haise (LMP)

It's reading about 25-1/2, MAIN B is reading zip right now.

Jim Lovell (CDR)

And, Houston, Odyssey.

Jack Lousma (CAPCOM)

13, Houston. We'd like you to attempt to reconnect fuel cell 1 to MAIN A and fuel cell 3 to MAIN B. Verify that quad Delta is open.

Fred Haise (LMP)

Okay, Houston. I'm showing—I tried to reset and fuel cell 1 and 3 are both showing gray flags, but they are both showing zip on the flows.

Fred Haise (LMP)

Okay, Houston. Are you still reading 13?

Jack Lousma (CAPCOM)

That's affirmative. We're reading you. We're trying to come up with some good ideas here for you.

Fred Haise (LMP)

Okay. Let me give you some reading … in the interim to help MAIN A voltage, Jack. I've got BUS TIE AC on.

Fred Haise (LMP)

In the interim, to help out MAIN A voltage, I've got MAIN BUS TIE BAT AC on. Or would you rather accept the 25 volts we are seeing on MAIN A?

Jack Lousma (CAPCOM)

13, Houston. We need OMNI Charlie, please.

Jack Lousma (CAPCOM)

13, Houston. We'd like you to verify couple of readings for us. We would like the nitrogen pressure on fuel cell 1. We need the oxygen pressure on fuel cell 2.

Fred Haise (LMP)

Okay. Nitrogen on 1 and oxygen on 2. Is that correct?

Fred Haise (LMP)

Okay. The systems test 1-A says zip.

Fred Haise (LMP)

And 2 Baker, which is 3 oxygen, says 0.6.

Jack Lousma (CAPCOM)

2 Baker says 0.6, and say again the other one.

Fred Haise (LMP)

Fuel cell 1 nitrogen reads zero.

Jack Lousma (CAPCOM)

13, Houston. We'd like you to open circuit fuel cell 1; leave 2 and 3 as is.

Fred Haise (LMP)

Okay. I'll get to work on that.

Jim Lovell (CDR)

And, Jack, our O2 quantity number 2 tank is reading zero. Did you get that?

Jack Lousma (CAPCOM)

O2 QUANTITY number 2 is zero.

Jim Lovell (CDR)

That's AC, okay. Yes, that's good AC and it looks to me, looking out the hatch, that we are venting something. We are venting something out into the—into space.

Jack Lousma (CAPCOM)

Roger. We copy your venting.

Jim Lovell (CDR)

It's a gas of some sort.

Fred Haise (LMP)

Okay. Fuel cell 1, you just wanted it off the line now, Jack, is that right?