Report of the PRESIDENTIAL COMMISSION
on the Space Shuttle Challenger Accident
Volume 4 Index
Hearings of the Presidential
Commission on the Space Shuttle Challenger Accident: February 6, 1986
to February 25, 1986
FEBRUARY 13, 1986 SESSION. [Part 2 of
2]
[548] [Ref. 2/13-45] 51-L FAILURE ANALYSIS STATUS
REPORT.
FAILURE SCENARIO (B) - RIGHT HAND SRM AFT FIELD JOINT LEAK (FIRST
EVENT)
EVENT (B2) - LEAK CHECK PORT LEAKS
- 51-L OBSERVATIONS/DATA
(B2.1) ANOMALOUS "SM0KE" STARTING AT (OR NEAR) LIFTOFF COULD BE
LEAK FROM LEAK CHECK PORT
- TESTS
(B2.4 LEAK CHECK PORT FLOW CHARACTERIZATION TEST
[549] [Ref. 2/13-46] 51-L FAILURE
ANALYSIS STATUS REPORT.
FAILURE SCENARIO (B) - RIGHT HAND SRM AFT FIELD JOINT LEAK (FIRST
EVENT)
EVENT (B1) - SECONDARY O-RING LEAKS
- 51-L OBSERVATIONS/DATA
(B1.1) ANOMALOUS "SMOKE" STARTING AT (OR NEAR) LIFTOFF COULD BE
FROM RIGHT HAND SRB AFT FIELD JOINT
(B1.2) SUSPECT SECONDARY O-RING INDICATED IN CLOSE-OUT
PHOTOS
(B1.3) LAUNCH ENVIRONMENT/COLD TEMPERATURES
- ANALYSES/DATA
(B1.4) SUSPECT O-RING PHOTO ENHANCEMENT
(B1.5) JOINT THERMAL ANALYSIS
(B1.6) JOINT/SEAL DYNAMICS
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