1、Lessons Learned Entry: 1244Lesson Info:a71 Lesson Number: 1244a71 Lesson Date: 2002-06-17a71 Submitting Organization: HQa71 Submitted by: David LengyelSubject: Space Shuttle Program/Orbiter Major Modifications/Systems Safety Modifications Description of Driving Event: Possible deferral of Orbiter Ma
2、jor Modification periods which include significant safety upgrades.Lesson(s) Learned: Deferring the Orbiter Major Modifications intensifies the risk that scheduled safety upgrades will never be completed, thereby further increasing the life-cycle safety risk of operating the Space Shuttle.Recommenda
3、tion(s): Incorporate deferred safety-related modifications in the affected orbiters expeditiously. This should not be accomplished at the expense of other safety or operational upgrades or the prudent maintenance of the Space Shuttle systems and its infrastructure. Evidence of Recurrence Control Eff
4、ectiveness: Orbiter project is currently incorporating a number of safety-related modifications and has placed priority on many proposed safety and risk reduction modifications.Documents Related to Lesson: N/AMission Directorate(s): Provided by IHSNot for ResaleNo reproduction or networking permitte
5、d without license from IHS-,-,-a71 Space Operationsa71 Exploration SystemsAdditional Key Phrase(s): a71 Aerospace Safety Advisory Panela71 Financial Managementa71 Ground Operationsa71 Risk Management/Assessmenta71 Safety & Mission Assurancea71 SpacecraftAdditional Info: Approval Info: a71 Approval Date: 2002-06-27a71 Approval Name: Bill Loewya71 Approval Organization: HQa71 Approval Phone Number: 202-358-0528Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
