REG NASA-LLIS-5476-2012 Lessons Learned - The Value of Post Flight Reports and System Reviews in Understanding and Correcting Space Craft Anomalies.pdf

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1、Public Lessons Learned Entry: 5476 Lesson Info: Lesson Number: 5476 Lesson Date: 2010-06-3 Submitting Organization: KSC Submitted by: Annette Pitt Subject: The Value of Post Flight Reports and System Reviews in Understanding and Correcting Space Craft Anomalies Abstract: System reviews conducted by

2、the Chief Engineer can correlate space vehicle performance to the effects on flight hardware using the Space Shuttle System as a model Description of Driving Event: During the Space Shuttle Program, it was common to lose, or partially lose, a fill material used to fill gaps between thermal protectio

3、n system tiles (Ames Gap fillers). Other common issues found post flight were charred filler bar locations and missing putty repairs used to fix chips in tiles. A post flight report was published, but one flight was never really compared to the previous ones, so these issues were not immediately app

4、arent. Post flight reports and system review presentations were archived for historical data trending purposes. Figure 1: Charred Filler Bar Locations Lesson(s) Learned: After compiling post flight inspection reports and adding a detailed systems review conducted by the Chief Engineer, the NASA comm

5、unity can correlate space vehicle performance to the effects to flight hardware. Data can be used to identify these common issues that continually reoccur, so that they can be addressed and eliminated. Post flight reviews also help to understand aerothermal effects on space hardware and validate exi

6、sting analysis data. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Recommendation(s): For any future space flight vehicle or significant program or project, a requirement should be established to formally conduct system reviews and post flight, or

7、post milestone, reports. The requirement should establish cataloging and archiving of reports for historical data trending purposes, using the Space Shuttle System as a model. Evidence of Recurrence Control Effectiveness: N/A Documents Related to Lesson: Mission STS-129 OV-104 Flight 31 Thermal Prot

8、ection System Post-Flight Assessment Click here to download communication document. Mission Directorate(s): Space Operations Additional Key Phrase(s): 1.Maintenance 1.Product Assurance 1.Reliability 1.Engineering design and project processes and standards 1.Review boards 1.Program level review processes 1.Review systems and boards Additional Info: Project: Space Shuttle Program Approval Info: Approval Date: 2012-04-05 Approval Name: mbell Approval Organization: HQ Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-