Fred Haise (LMP)

Okay, I'm back on the checklist, page 6. Jack, under PGNS turn-on and self-test. We've done everything except the self test here on this page. Do you want to do that at this time?

Jack Lousma (CAPCOM)

Okay. Aquarius, negative on the PGNS self test.

Fred Haise (LMP)

Okay. I'll scratch page 6 and on page 7, we're not going to activate the—or rather we had the S-band activated, ECS Activation I have all done. And, at the bottom of the page, the docked IMU coarse aline is done.

Fred Haise (LMP)

We've—Okay, we've also completed, I guess in essence, all of page 8.

Jack Lousma (CAPCOM)

That's affirmative and page 9 to boot. Scratch VHF. We've done the Tephems.

Fred Haise (LMP)

Okay. You've updated it, that's right. We cranked in the time.

Jim Lovell (CDR)

And, Houston, let's go to activation—or get into page 10 and see what we did there.

Jack Lousma (CAPCOM)

Okay. The only item on page 10 is to deploy the landing gear.

Jim Lovell (CDR)

Okay, we'll do that now.

Fred Haise (LMP)

Okay. The landing gear are down and locked, Jack, and looking ahead now at page 11, we've done all of that.

Jack Lousma (CAPCOM)

We verify that. Page 12.

Fred Haise (LMP)

Okay, and I assume in amongst all those numbers you pumped up, we got a REFSMMAT and STATE VECTOR, is that correct?

Jack Lousma (CAPCOM)

That's affirmative. You've got that. So you can delete page 12.

Fred Haise (LMP)

Hey, on 13, you've read us up the fine aline angles and we've cranked those in.

Fred Haise (LMP)

Okay, so now we're up to—we've got to do DAP set, the gimbal/throttle test.

Jack Lousma (CAPCOM)

That's—Okay, Aquarius. We recommend omitting the DAP set, gimbal/throttle test—just make sure the gim—DECA POWER and DECA GIMBAL circuit breakers are closed.

Fred Haise (LMP)

Okay, we're going to proceed now with the DAP set, gimbal/throttle test, is that correct? Or did you say delete it?

Jack Lousma (CAPCOM)

Aquarius, delete the DAP set, gimbal/throttle test. Just ensure that the DECA POWER and the DECA GIMBAL are closed.

Jim Lovell (CDR)

Okay. Houston, DECA POWER is OPEN at this time. Do you want me to close it?

Jack Lousma (CAPCOM)

Affirmative, Jim. Close the DECA POWER.

Jim Lovell (CDR)

It's CLOSED. We deleted that.

Fred Haise (LMP)

Okay. Also out of that list, Jack, we need the COMMANDER's THROTTLE set to THROTTLE and MIN.

Fred Haise (LMP)

Houston, if I recall the launch set of the gimbals, the GDAs are not correct here, and where are we going to get those set for the burn?

Jack Lousma (CAPCOM)

Okay. Here's the word on the DAP set, gimbal/ throttle test. Let's do step 1 and step 2, and that'll get our gimbal set.

Fred Haise (LMP)

Okay, Jack, we're going to have to back up on this, if we're going to follow the procedure here, which has us go MODE CONTROL; PGNS, AUTO, we're going to have to pull the TCA breakers to keep from firing jets.

Jack Lousma (CAPCOM)

Stand by on step 1, Fred. We're getting the word for you. How do you like this SIM?

Jack Lousma (CAPCOM)

Okay, Aquarius, we recommend you do the DAP set and gimbal/throttle test as per the checklist. Go PGNS AUTO and proceed.

Jim Lovell (CDR)

Well, we're going to fire our thrusters as soon as we go to AUTO because we've got those thrusters in—the thruster circuit breakers. Do you want us to do that and stop?

Jack Lousma (CAPCOM)

Okay, Aquarius, we're recommending you go to AUTO. Let the thrusters fire and settle down and proceed with the test.

Jack Lousma (CAPCOM)

Roger, your DAP is set, you're in wide deadband. That ought to do the trick.

Jack Lousma (CAPCOM)

Okay, we're looking at it, Aquarius. We're ready to proceed with the test.

Fred Haise (LMP)

Okay, we're proceeding.

Fred Haise (LMP)

Okay, and Houston, you—you're looking at the weights now. Those are still good, right?

Jack Lousma (CAPCOM)

You're GO on the weights.

Jack Lousma (CAPCOM)

Aquarius, Houston. We'd like you to recycle on the DAP load and change your DAP to 32021. Over.

Jack Lousma (CAPCOM)

Okay, Aquarius. We're looking at your gimbal and we notice that we got a four-jet ullage loaded in the DAP and we gave you two jets on the pad. But, let's go with what we've got loaded. It'll be a four-jet ullage.

Fred Haise (LMP)

Okay, Houston. How does the GDAs look now?

Jack Lousma (CAPCOM)

The GDAs are GO as they are. Press on.

Jim Lovell (CDR)

Okay, Houston, we're going to do the DPS pressurization and checkout.

Jack Lousma (CAPCOM)

Okay, your gimbals are within 0.3 and we're ready for the DPS pressurization and checkout.

Fred Haise (LMP)

Okay, Houston, do you want to follow up on page 15 with RCS checkout? In essence, we've kind of already done that.

Jack Lousma (CAPCOM)

You're right, Aquarius. Let's delete the RCS checkout. And a DPS looks GO.

Jim Lovell (CDR)

Houston, we're going to do a PGNS AUTO maneuver to the attitude.

Jack Lousma (CAPCOM)

Stand by on that. Aquarius, we recommend driving it around there manually with a TTCA.

Jim Lovell (CDR)

Okay, we'll have to use the TTCA. Roger.

Jim Lovell (CDR)

We're going to AUTO now, Houston, to try to damp the rates. We're at the attitude.

Jack Lousma (CAPCOM)

Roger, Jim. We verify the attitude.

Fred Haise (LMP)

And, Houston, we'd like to confirm, do you want the VERB 65 ENTER in there?

Jack Lousma (CAPCOM)

Affirmative on the VERB 65.

Fred Haise (LMP)

Okay, Jack. I got another question on page 18. At 1 minute, I concur with MASTER ARM ON, but I wonder why I have to have the ABORT STAGE breaker in. We sure don't want any staging now.

Jack Lousma (CAPCOM)

Aquarius, delete the ABORT STAGE circuit breaker CLOSE. Leave it open.

Fred Haise (LMP)

Okay. Also, Jack, since we have four-jet ullage versus two, do you want—still want 10 seconds ullage or do you want 5 now?

Jack Lousma (CAPCOM)

Okay, Aquarius, we'll use automatic ullage.

Fred Haise (LMP)

Okay. We'll just let the 7-1/2-second AUTO ullage do it.

Jack Lousma (CAPCOM)

Roger, and we'd like to do this in manual throttle, so on page 17 about two-thirds of the way down, THROTTLE CONTROL, MANUAL, vice AUTO.

Fred Haise (LMP)

Okay. We're set to MANUAL.

Jim Lovell (CDR)

We've got 203 in the DSKY now and it looks as though it requires work, can we pass it?

Jack Lousma (CAPCOM)

Aquarius, ENTER on the 203.

Jack Lousma (CAPCOM)

Aquarius, we'd like to verify that your throttle is in the MIN position.

Jack Lousma (CAPCOM)

And, in the event that you have to do a manual takeover, turn the ENGINE GIMBAL OFF, MODE CONTROL to ATTITUDE HOLD, and use the hand—use the TTCA.

Fred Haise (LMP)

Okay, 1 plus 30 to burn.

Fred Haise (LMP)

Okay, MASTER ARM's ON; 1 minute.

Jack Lousma (CAPCOM)

Roger, Aquarius. You're GO for the burn.

Jack Lousma (CAPCOM)

Okay, Aquarius. You're looking good.

Fred Haise (LMP)

Okay. You're looking at 1685 now, Jack.

Jack Lousma (CAPCOM)

Okay. You're GO in the residuals, proceed.

Fred Haise (LMP)

Okay. When you say GO on the residuals, you mean don't trim them. Is that right?

Jack Lousma (CAPCOM)

That's affirmative. No trim required.

Jack Lousma (CAPCOM)

Aquarius, check your MASTER ARM OFF, please.

Jim Lovell (CDR)

Okay, Houston. Burn's complete. Now we have to talk about powerdown, and what do you want us to do with the PGNS?

Jack Lousma (CAPCOM)

Roger. We're looking at that right now, and you'll be the first one to get the word.

Jim Lovell (CDR)

And, Houston, it's doubtful right now whether we'll be able to see the stars in this configuration. The only way we could possibly get alinement is with the Earth and the terminator or the Moon and its terminator and I'd sure like to have you look at a powerdown—keeping the PGNS if at all possible.

Jack Lousma (CAPCOM)

Roger, Jim. We'll get the word for you.

Jim Lovell (CDR)

And, Houston, we're in an ATT HOLD mode, can we turn off the buses?

Jack Lousma (CAPCOM)

Stand by on that one, Jim.

Jack Lousma (CAPCOM)

Okay, Aquarius. We're working on what's going to happen next. In the meantime, we'd like to take some high-power items off the line, so on panel 11, open DECA POWER, and open DECA GIMBAL. On 16, open the ATCA breaker.

Fred Haise (LMP)

Okay, on 11, we got DECA POWER, DECA GIMBAL, OPEN. On 16, we got the ATCA breaker OPEN.

Jim Lovell (CDR)

And, Houston, while you're thinking, see if you can come up with a procedure of perhaps using the command module optics with manual drive to perhaps look for stars.

Jim Lovell (CDR)

And, Jack, Aquarius. While you're thinking—before we had our COMM problems, we were wanting to know what to—whether we should hook up the side hatch urine dump system. So we wouldn't freeze up the normal urine dump system.

Jack Lousma (CAPCOM)

Roger. We gave you a GO on that earlier. Sorry, you must have missed it. Use the side hatch for urine dump.

Jack Lousma (CAPCOM)

And, how are the stars out the window now?

Jim Lovell (CDR)

Well, I'll look again, Jack, but at this attitude, the Sun is reflecting off of—off of quad 4 so bright that it's ruining any night vision and we still got particles floating around us; I'll have to take a long look and see if I can see any star patterns.

Jack Lousma (CAPCOM)

Roger. And Aquarius, we're going to have to hand you over to a different site now, and we think maybe things will work better if this time we turn off the S-band transmitter/receiver, and bring it back up in 5 minutes. You copy?

Jim Lovell (CDR)

Okay. I understand you want us to turn off the S-band transmitter/receiver and bring it up in 5 minutes. Is that correct?

Jim Lovell (CDR)

And you want us to maintain attitude control.

Jack Lousma (CAPCOM)

Affirmative on the attitude control.

Jim Lovell (CDR)

That's auto attitude control. Okay. You maintain auto attitude control.

Fred Haise (LMP)

Okay, Jack, I'm back on the line now. On the S-band, you want me to turn off the transmitter/ receiver and the power amps are off for 5 minutes. Is that—when you give me the word—is that what you want?

Jack Lousma (CAPCOM)

Aquarius, leave the power amplifier the way it is. Turn the transmitter/receiver off for 5 minutes. Now.

Fred Haise (LMP)

Okay. You tell me—you tell me when.

Jack Lousma (CAPCOM)

Okay. Turn it off now. See you in 5 minutes.

Fred Haise (LMP)

Okay. It's gone off. It's gone off for 5 minutes.

Jack Lousma (CAPCOM)

Aquarius, Houston. How do you read?

Fred Haise (LMP)

Okay. You're loud and clear there, Jack.

Jack Lousma (CAPCOM)

Roger. Same here. We're—We're still discussing the next move.

Fred Haise (LMP)

I figured it. Let's just make it a good one.

Jack Lousma (CAPCOM)

We're looking real close at water usage profiles, and right now things are kind of swinging toward leaving the IMU powered up and powering down the LGC, but we'll have more word for you shortly. And we recommend for sleeping that you leave one guy on watch. We recommend you don't make any urine dumps if you can help it, because it'll make the debris problem worse than it is now. And we have some items that you might want to transfer to the LM, some towels, some penlights, fecal bags, UTS. And do you have any more items that we can help you out with at the moment?

Fred Haise (LMP)

Okay. Stand by on your latter list there, Jack. I understand no urine dumps. I guess we'll work through the UCD and all the bags we got; and real quick there, can you give a DAP load that we want in here now to conserve the RCS.

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Spoken on April 14, 1970, 8:17 a.m. UTC (51 years, 7 months ago). Link to this transcript range is: Tweet

Jack Lousma (CAPCOM)

Okay. For attitude control coordinates, we're recommending manual control VERB 76 and watch your middle gimbal angle. Your DAP load that you have now looks good.

Fred Haise (LMP)

Okay. It's ATT HOLD VERB 76 for the guy on watch. And the DAP load we got right now is okay.

Jack Lousma (CAPCOM)

Aquarius, our decision for the time is to leave the IMU powered up, power down the LGC, and power down other nonessential items. We'll be coming up with a more precise checklist as soon as we can get it. Over.

Fred Haise (LMP)

Okay. The decision is to keep the platform, power down the computer, and we'll be standing by for further word on the powerdown, Jack.

Jack Lousma (CAPCOM)

And, Aquarius, for your information, we now have 136-mile perigee. Confirmed by Doppler.

Fred Haise (LMP)

Okay. 136-mile perigee now. That's very nice.

Fred Haise (LMP)

Oh, wait a minute, Jack. Did you say pericynthion or perigee?

Jim Lovell (CDR)

And, Houston, we pulled out your UPDATA LINK circuit breaker, so if you want to update it for anything, let us know and we'll put it back in.

Jack Lousma (CAPCOM)

Aquarius, AFT OMNI, please.

Fred Haise (LMP)

Houston, do you read Apollo 13?

Jack Lousma (CAPCOM)

This is Houston. Go ahead. Reading you weakly.

Jim Lovell (CDR)

Okay, Jack. We don't want to bug you, but you ought to be thinking—or what your thoughts are concerning what the next burn will be. I got to figure out a watch schedule and the sleep schedule and just how we can meet the next maneuver.

Jack Lousma (CAPCOM)

Roger. We're getting you a flight plan update. We're still computing on your next burn, and we're getting ready to give you a procedure for powerdown.

Jack Lousma (CAPCOM)

Aquarius, one idea on managing the OMNI antennas. It might make it easier on everybody if we disabled the UPLINK SQUELCH and managed the antennas by switching when we hear the noise. Over.

Jack Lousma (CAPCOM)

Okay, Aquarius. Here's what we're going to do. We'd like you to point the LM X-axis either north or south. That's the positive X-axis. It appears to us that it would be closer to orient the LM plus X-axis toward the south. Do that with the LGC powered up using the TTCA. After that, we propose to power down the LGC to save some power. However, this means that we lose the use of the TTCA, and we'll have to control the spacecraft with the hand controller in the DIRECT mode. Request your—your position on these two items.

Jack Lousma (CAPCOM)

Aquarius, Houston. How do you read?

Jim Lovell (CDR)

Okay, Jack. Understand. You want us to point the LM X—plus X-axis to the south using the TTCAs with the LGC powered up. Then, by powering down the LGC, we'll lose a TTCA. I wasn't too successful in controlling the spacecraft in attitude only, but I might be able to keep it out of gimbal lock.

Jack Lousma (CAPCOM)

That's affirmative, Jim. We'd keep your ball powered up and go to DIRECT on the hand controller. And maintain attitude in a DIRECT position.