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 10, 1986 SESSION
[276] [Ref. 2/10-6 1 of
2] SOLID ROCKET BOOSTER.
SOLID ROCKET BOOSTER
FY 1987 BUDGET RECOMMENDATION
TO THE ADMINISTRATOR
(AUGUST 21, 1985)
[Ref. 2/10-6 2 of 2] SOLID ROCKET
BOOSTER.
BUDGET THREATS
- FWC STA TEST PROGRAM
- FWC REIMBURSEMENTS (7TH FLIGHT SET AND
SUBS)
- SRM "O" RING CHARRING
- ACHIEVEMENT OF PLANNED TURNAROUND
IMPROVEMENTS
- DEFINITION OF FWC REQUIREMENTS
- BUDGET BASED ON SRM 3RD BUY PROCUREMENT OF
90 FLIGHT SETS
- POTENTIAL SRM DUAL SOURCE
PROCUREMENT
[277] [Ref. 2/10-7]
PROPULSION DIVISION SOLID ROCKET BOOSTER.
- STS-51-I
- ASCENT PERFORMANCE
- SRM PERFORMANCE CHARACTERISTICS
WITHIN SPECIFICATIONS
- BURN RATES HIGHER THAN
PREDICTIONS
|
|
PREDICTED
|
ACTUAL
|
|
LH
|
.373
|
.375
|
|
RH
|
.371
|
.375
|
- ALL SUBSYSTEM OPERATIONS NOMINAL
(TVC, E&I, SEPARATION, RECOVERY)
- POST FLIGHT HARDWARE INSPECTION
- BOTH BOOSTERS IN GOOD
CONDITION
- NO REPORTABLE NOZZLE EROSION
(<.250")
- NO STRUCTURAL DAMAGE
- NO SEGMENT FIELD JOINT "O" RING
DAMAGE
- ONE MINOR EROSION ON NOZZLE TO
CASE PRIMARY "O" RING
- FWC
- STA RE-TEST SCHEDULED DOR JANUARY - NO
IMPACT ON MARCH VAFB LAUNCH ANTICIPATED
- HI PRODUCTION TO CHANGE TO 3-8-7 TO
SUPPORT V-2 LAUNCH IN SEPTEMBER 1986 AS A RESULT OF DIVERTING
(2) FLIGHT SEGMENTS FOR STA RE-TEST
- POTENTIAL OF RESCHEDULING QM-5 TEST FOR
NOVEMBER 1985.
[278] [Ref. 2/10-8 1 of
2] PROPULSION DIVISION MONTHLY STATUS REPORT, DECEMBER 10, 1985.
[279] [Ref. 2/10-8 2 of
2] SOLID ROCKET BOOSTER ISSUES.
- FW STA FAILURE
- CASE TO CASE/NOZZLE "O" RING
CHARRING
- ACHIEVEMENT OF PLANNED TURNAROUND
IMPROVEMENTS
- CONTINUED AVAILABILITY OF ASBESTOS FILLED
INSULATION
- PARACHUTE SEPARATION AT WATER
IMPACT/NOZZLE SEVERANCE AT APOGEE
- REEVALUATION OF RECOVERY SYSTEM
REDUNDANCY
- APU GAS GENERATOR INJECTOR TUBE
PROCESSING
- GREATER QC ACTIVITY NEEDED AT MTI
NEW ENTRY
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