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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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6-11 ## CONFIDENTIAL But I would just say in general that that checklist should be reworked. There are many little pitfalls. For example, if you find yourself in an inertial attitude, and all you want to do is spin up around that attitude, the checklist implies that you can just go into it at that intermediate point, but that is not the case either. You must pretend that you are in the wrong attitude, ask the computer to maneuver you to the right attitude and then go through the entire checklist from that viewpoint, or it won't work properly. These are just two pitfalls that I happen to know about right now. ## ARMSTRONG It seems to me that the point is that this is a very good procedure that worked extremely well, and we're going to find that it's extremely easy to use but has not stood the test of time yet. It needs a lot more experience in use before we could use it reliably and repeatedly every time without causing a later problem that we couldn't predict. That's right. Another little facet of it is that after the PTC is initiated, then there are certain no-no's in regard to the use of the DSKY's having to do with collapsing deadband and other problems internal to the computer. ## CONFIDENTIAL
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