1、Lessons Learned Entry: 1054Lesson Info:a71 Lesson Number: 1054a71 Lesson Date: 1998-02-01a71 Submitting Organization: HQa71 Submitted by: David M. LengyelSubject: International Space Station (ISS) Program/Hardware/Qualification Testing Description of Driving Event: Shipment of Hardware to KSC Before
2、 Qualification TestingLesson(s) Learned: Node #1 was shipped to KSC before completion, and it is planned or anticipated that other ISS hardware will be shipped before qualification tests are completed. This disrupts the desirable continuity of effort and can lead to safety problems.Recommendation(s)
3、: NASA should assure that ISS assemblies shipped before completion of the manufacturing, testing, and qualification processes have been carefully scrutinized to make sure that no safety-related steps are subverted. Evidence of Recurrence Control Effectiveness: The generation, implementation and trac
4、king of ISS assembly, checkout and test requirements is provided by engineering, configuration management and safety and mission assurance processes that are in place and actively monitored. Should a decision be made to transfer flight articles to a different location for completion of planned assem
5、bly and checkout activities, these processes ensure an accurate status of accomplished and traveled work is known and documented. In addition, a predetermined set of criteria identifies the set of minimum essential requirements to be accomplished prior to shipment. All ISS assemblies undergo a rigor
6、ous predelivery review prior to shipment to KSC. This high-level Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-review is attended by Senior NASA and contractor representatives from all the major functional disciplines involved in the specific assem
7、bly in question, including Engineering, Quality, Safety, Hardware Integration Office, and KSC Processing. Open work items that are candidates for completion at KSC are specifically addressed, validated and accepted by all in attendance prior to being forwarded for integration into the contractors ex
8、isting work plan for KSC. No work practices or safety related practices are compromised by this process. Boeing remains completely accountable for work completion and providing complete and fully tested ISS components to NASA regardless of the physical location of the assembly process.Documents Rela
9、ted to Lesson: N/AMission Directorate(s): a71 Space Operationsa71 Exploration SystemsAdditional Key Phrase(s): a71 Aerospace Safety Advisory Panela71 Policy & Planninga71 Risk Management/Assessmenta71 Safety & Mission Assurancea71 Test & VerificationAdditional Info: Approval Info: a71 Approval Date: 2001-12-14a71 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-,-,-
