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NASA-LLIS-6036: Lessons Learned - Ground Umbilical Carrier Assembly Gaseous Hydrogen Leak Investigation
Abstract: A gaseous hydrogen (GH2) leak occurred on 03/11/09, during the STS-119/ET-127 cryogenic loading for flight, and was repaired with a "fix to fly" approach by replacing the flight seal and the Ground Umbilical Carrier Assembly ...