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This is Volume 1 of NASA's Apollo 11 Technical Crew Debriefing, dated July 31, 1969. The Mission Operations Branch of the Flight Crew Support Division at the Manned Spacecraft Center in Houston prepared it, and it was originally classified Confidential. In it Armstrong, Aldrin and Collins go phase by phase through suiting, launch, powered flight, Earth orbit and lunar surface activities. They comment on suit fit, vibration, checklists, lunar dust, footing and poor sleeping conditions in the lunar module. A section titled Visual Sightings appears in the table of contents.
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## CONFIDENTIAL a half later. At this time, I had nothing really further to do until Buzz returned with his suit on. When he came back, we only had to wait on Mike to get the tunnel closed up before we could continue with things like the pressure integrity checks and regulator checks. ALDRIN It seemed to me we spent a good bit of time holding at just about that point. ARMSTRONG We were a little ahead, and it turned out that there was very few things that we could do or wanted to do at that point. 8. 2.5 ECS ALDRIN The glycol pump sure made a lot of noise. ## 8.2.13 Ascent batteries ## ALDRIN You kind of hate to bring the ascent batteries on the line. You've got a system going and then turn off all the descent batteries just to prove that the ascent batteries are working. You have no backup if you turned off all the batteries; at that point, everything would go dark. Maybe that wasn't the only way you could go about checking to see that the ascent batteries worked. But, that worked out all right. ## CONFIDENTIAL
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