REG NASA-LLIS-3637-2011 Lessons Learned Specification for Varied Installation of Temporary Payload Integration Hardware.pdf

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1、Public Lessons Learned Entry: 3637 Lesson Info: Lesson Number: 3637 Lesson Date: 2010-08-16 Submitting Organization: KSC Submitted by: Annette Pitt Subject: Specification for Varied Installation of Temporary Payload Integration Hardware Abstract: Boeing Specification ML0303-0073 was developed to acc

2、ount for and document necessary changes in installation of temporary payload integration hardware during ground processing of the Space Shuttle. This separate specification allows variation in the installation of such hardware in order to respond to change requests from payload customers in real tim

3、e. The flexibility offered by this specification reduces delays in installations of payloads and instances of Problem Reports (PRs) and Engineering Orders to Follow (EOTFs). Description of Driving Event: Problems with the installation of payload harnesses delayed payload installation and verificatio

4、n testing. To minimize this occurrence, a team was assigned to identify the applicable temporary payload integration hardware and the variations in installation that might be needed. Boeing Specification ML0303-0073 was developed to address this temporary, mission-dependent hardware and to prevent c

5、onfusion with permanently installed orbiter hardware. Now, the allowable changes to hardware installation require engineering concurrence, photographs, and documentation in an installation procedure, not the time-consuming process of making and approving engineering changes to drawings. Lesson(s) Le

6、arned: The variations allowed in Boeing Specification ML0303-0073 are used numerous times for each mission flow during payload processing, which helps maintain the processing schedules and reduce Problem Reports (PRs) and Engineering Orders to Follow (EOTFs). Recommendation(s): Allowing variation to

7、 an installation specification helps system engineering maintain processing schedules and reduce engineering changes. Onsite system engineers now have a responsive alternative to engineering changes for varied installation of temporary hardware. Reducing engineering changes saves money. Evidence of

8、Recurrence Control Effectiveness: N/A Documents Related to Lesson: Boeing Specification ML0303-0073 Mission Directorate(s): Space Operations Additional Key Phrase(s): Ground processing and manifesting Engineering design and project processes and standards Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Additional Info: Project: Space Shuttle Program Approval Info: Approval Date: 2011-02-28 Approval Name: mbell Approval Organization: HQ Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-