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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 it was actually binding. Fortunately, Buzz was able to help a great deal. He actually put the majority of the forces into pulling the boxes up from the top end, rather than me from the bottom end. I was standing at a very severe angle, which prevented me from using as much force as I had planned for pulling. The ground was too soft and my feet slipped easily. I was leaning over at approximately a 45-degree angle. I had one foot behind me so that if my foot slipped, I wouldn't fall down. The surface was worse. I think the angle and so on were about the same, but I did not have the footing. I couldn't get the footing in this soft powder that you needed to do that job. ## ALDRIN There are several points that tend to make footing more difficult. One is the powdery, graphite-like substance. When it comes in contact with rock, it makes the rock quite slippery. I checked this on a fairly smooth, sloped rock. It was quite easy to get this material on it, and the boot would slip fairly easily. That factor tends to make one more unstable. The second point is that the surface may look the same, but we found that in many areas (with just very small changes in the local surface topography) there ## CONFIDENTIAL
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