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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 ## ARMSTRONG We have some pictures of the struts. The part that had been melted, separated, and rolled back or peeled back on the secondary strut appeared as though it was a much more flimsy design then any other thermal covering on there. I don't think there is anything significant in the fact that part of the thermal coating that was higher up had separated, whereas the material lower down had not. I didn't notice anything peculiar about the vents. There didn't seem to be anything at all deposited on the surface from any of the vents underneath or from the oxidizer fuel vent up above. ARMSTRONG The most pronounced insulation damage was on the front plus Z strut. Its being in deep shadow obviated the possibility of getting a good closeup picture in that dark environment. ALDRIN I think the best pictures we got were of the minus Z strut. ## ARMSTRONG There was less damage than on the examples we looked a preflight. Just the very outer layers were penetrated ALDRIN From what I could see of the probes, they had just bent or broken at the upper attach point. I didn't observe that they had any other fractures in them. One of them on the minus Y strut was sticking almost straight up. CONFIDENTIAL
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