Description of Driving Event:
During a Pegasus launch from Kwajalein Island on October 9, 2000 the stage 1/2 interstage did not initially fully separate causing the launch vehicle to yaw significantly.
Lesson(s) Learned:
Insufficient margin between the linear shaped charge and the aluminum ring thickness preventing complete cutting of the separation ring.
Recommendation(s):
See NASA ELV Engineering Review Boards #1401KSC and the related reconvenes for recommendations and actions taken to alleviate this Pegasus separation concern.
Evidence of Recurrence Control Effectiveness:
Successful subsequent separations of the 1/2 interstage.
Documents Related to Lesson:
N/A
Mission Directorate(s):
- Exploration Systems
- Aeronautics Research
Additional Key Phrase(s):
- Aerospace Safety Advisory Panel
Additional Info:
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