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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.
“Neil”19 pages
## CONFIDENTIAL seemed to go quite well, until we started switching the PLSS modes. For a while, we ascribed some of the difficulty perhaps to the antenna being stowed. So we unstowed Neil's, and that didn't help immediately. A little later, it seemed to help out, but then we got back into about the same problem, so I stowed his antenna. There didn't seem to be any particular rhyme or reason to when we did appear to have good COMM and when we didn't. It suffices to say that we never did understand what was required to enable good COMM while we were inside the cockpit, relaying through the PLSS's. We had it part of the time, and we didn't part of the time. We tried a lot of various options, and they just weren't universally successful. But we were able to have adequate COMM to enable us to continue. I think, once outside, we really didn't have any appreciable COMM problems at all. It seemed to work well. ## 10.20 DEPRESSURIZATION This was one area of flight preparation that was never completely performed on the ground. In the chamber, the PLSS's were left on the engine cover and we never put them on our backs because of their weight, and the ## CONFIDENTIAL
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