REG NASA-LLIS-0229-1992 Lessons Learned - Flight Schedules.pdf

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1、Lessons Learned Entry: 0229Lesson Info:a71 Lesson Number: 0229a71 Lesson Date: 1992-11-25a71 Submitting Organization: KSCa71 Submitted by: Lisa L. MusgraveSubject: Flight Schedules Description of Driving Event: The original STS operations baseline plan defined required capabilities for the STS syste

2、m before it was designed. The operational system would fly 6 flights the first year, 15 the second, 24 the third, and by the sixth year a total of 60 flights per year. To meet this flight rate, turnaround was to be completed in 14 days. The vision of the operational space shuttle was clearly much la

3、rger than the resource base eventually established to create the capability. The 1985 mission operations were successful in spite of significant remanifesting and perturbations. However, all trends prior to the STS 51-L mishap indicated that the milestones required to support preparations for the 19

4、86 flight schedule were not being met.Lesson(s) Learned: Requirements in support of the 1986 flight schedule provided inadequate resources to develop a capability to support an increased flight rate.Recommendation(s): Constrain the flight rate within the capacity of the NSTS program while maintainin

5、g reserve resources to develop a fully operational capability.Evidence of Recurrence Control Effectiveness: N/ADocuments Related to Lesson: Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-N/AMission Directorate(s): a71 Space Operationsa71 Exploration

6、 SystemsAdditional Key Phrase(s): a71 Administration/Organizationa71 Human Resources & EducationAdditional Info: Approval Info: a71 Approval Date: 1994-06-08a71 Approval Name: James G. Klinea71 Approval Organization: KSC/HEIa71 Approval Phone Number: 407-867-7614Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-