User Clip: McDonald 4PM phone call from Ebeling
McDonald 4PM phone call from Ebeling
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McDonald 4PM phone call from Ebeling
Chairman Rogers asks Thiokol engineer Roger Boisjoly to read aloud his 31 July 1985 memo to Thiokol's VP of Engineering, Bob Lund, expressing his concern that Thiokol was not taking the O-ri…
Thiokol engineer Roger Boisjoly reads aloud his 4 October 1985 activity report complaining that their meeting with Joe Kilminster the previous day got them nowhere.
McDonald describes NASA’s reaction to 53 degree recommendation (some garbled audio)
Chairman Rogers asks Roger Boisjoly to read aloud his memo written 31 July 1985 to Thiokol's VP of Engineering, Bob Lund, expressing his concerns that the O-ring erosion problem is not being…
Lund describes 1st telecon and preparations for 2nd telecon
Allan McDonald refers to O-rings to explain why he did not support the planned launch of the Challenger.
Thompson describes call from Brinton and meeting with Lund
Richard Feinman Grilling
Boisjoly presents chart 2-2 from the telecon
Boisjoly presents chart 2-1 from the telecon
Boisjoly presents chart 3-1 and was challenged to quantify his concerns
Commision chair William Rogers tells Allan McDonald he may refer to the notes he made shortly after the accident during his testimony.
Robert Lund, Joe Kilminster and Brian Russell
Allan McDonald is sworn into the Presidential Commission and outlines his position and experience.