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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 This is not because we didn't understand the problem. We had had trouble with that connector for 2 years or more. We'd always complained about it. It had never been redesigned, and it was usually ascribed to the fact that all the training models were old and gouged, and so on. But when we looked at the flight units during CCFF on the EMU, it turned out that they were still difficult. We accepted the fact that by being very careful with that connector we could, in fact, connect and disconnect it satisfactorily. We did that in the lab at the Cape. We had a little bit of difficulty with it there. When we got on the lunar surface, it was the same problem. It took us at least 10 minutes each to mate those connectors. It's the big electrical cable from the RCU to the PLSS. It attaches at the PLSS end. It's our recommendation that it's a sufficiently serious problem that we can't afford to jeopardize the success of an EVA on that connector. And that's right now what we're betting. It began to look like we never would get those connectors made on the surface. We just have to improve that. Connecting up the straps went quite smoothly. The initial COMM check out on the audio panel and the various communications checks that we made in the FM mode all ## CONFIDENTIAL
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