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Report of the PRESIDENTIAL COMMISSION on the Space Shuttle Challenger Accident

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Volume 4 Index

Hearings of the Presidential Commission on the Space Shuttle Challenger Accident: February 6, 1986 to February 25, 1986

FEBRUARY 10, 1986 SESSION

 

[319] [Ref. 2/10-20] Capture Direction.

 
• Billet informal direction - July 1985
• Drawing release with informal direction - October 1985
• ECP delivered to MSFC - 20 Jan 1986
• Rohr/Ladish acceleration informal discussions- 4 Feb 1986.
• Planned formal release to Rohr - 14 Feb 1986
• Will deliver first parts - August 1986

 

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[320] [Ref. 2/10-21] Concepts Implemented in QM-5.

 

• 0.292 in. diameter O-ring in center and aft field joints (vs 0.280 standard)
• Turcon spacer plus standard 0.275 in. diameter O-ring in nozzle joint (see chart D-2b)
• Vertical assembly of QM-5 nozzle.
• Inmont-Canada putty in all field joints and in nozzle joint using currently demonstrated layup configuration.

 

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