Report of the PRESIDENTIAL COMMISSION on the Space Shuttle Challenger Accident

 

Volume 5 Index

 

Hearings of the Presidential Commission on the Space Shuttle Challenger Accident: February 26, 1986 to May 2, 1986.

FEBRUARY 27, 1986 SESSION

[1118] [Ref. 3/7-23 3 of 3] Summary of KSC Segment Assembly Operations- RH Aft (SRM-25) to RH Aft Center (SRM-26).

 

SUMMARY OF KSC SEGMENT ASSEMBLY OPERATIONS RH AFT (SRM-25) TO RH AFT CENTER (SRM-26)

SEGMENT STACK SEQUENCE - 7 DEC 85

ACTIVITY

TIME

REMARKS

POSITION RH AFT CENTER SEGMENT IN TRANSFER AISLE

2300

6 DEC 85

LIFTING BEAM CONNECTED

0100

--

JOINT PUTTY APPLICATION COMPLETE

0120

FIRST ROUNDNESS MEASUREMENT - 4-POINT LIFT

0145

UNACCEPTABLE

FIRST ROUNDNESS MEASUREMENT - 2-POINT LIFT

0300

UNACCEPTABLE

SECOND ROUNDNESS MEASUREMENT - 2-POINT LIFT

0354

UNACCEPTABLE

THIRD ROUNDNESS MEASUREMENT - 2-POINT LIFT

0415

UNACCEPTABLE

COMPLETE RH AFT CENTER TANG INSPECTION

0500

NO PROBLEM REPORT

COMPLETE RH REPAIR, CASE TO INSULATION DEBOND TANG

0500

PR-SR-RAC-050-0001

INSTALL. JOINT ROUNDING TOOL TO TANG

0545

016° - 196° LOCATION

"0" RINGS INSTALLED

0910

CLOSEOUT PHOTOS TAKEN

0915

REMOVE TOOL AND TAKE ROUNDNESS MEASUREMENT

0935

ACCEPTABLE

TANG ENGAGED

1015

FIRST PIN INSTALLED

1020

LAST PIN INSTALLED

1030

LEAK CHECK COMPLETED

1220

0.0 PSI DECAY


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