1、Lessons Learned Entry: 0234Lesson Info:a71 Lesson Number: 0234a71 Lesson Date: 1992-12-04a71 Submitting Organization: KSCa71 Submitted by: Lisa L. MusgraveSubject: Clean Room F.O.D. Description of Driving Event: The Vertical Processing Facility (VPF) in KSCs industrial area is designed to accommodat
2、e all vertically processed payloads through cargo integration. The VPF consists of an environmentally controlled high bay and air lock. Two payload workstands with six fixed platforms provide access to payloads in the high bay. The workstand and platforms are currently painted with an epoxy-based pa
3、int applied over a zinc galvanized coating that prevents the paint from permanently adhering to the surface. Traffic and normal wear on the workstand causes the paint to flake, creating Foreign Object Debris (F.O.D.) and contamination in the clean room environment.Lesson(s) Learned: Epoxy paint appl
4、ied to galvanized-coated workstands will chip/flake with usage, resulting in F.O.D. and clean room contamination.Recommendation(s): In future designs, F.O.D. can be prevented/reduced by not painting galvanized/zinc-coated workstands in clean rooms.Evidence of Recurrence Control Effectiveness: N/ADoc
5、uments Related to Lesson: Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-N/AMission Directorate(s): N/AAdditional Key Phrase(s): a71 Facilitiesa71 Hardwarea71 Parts Materials & ProcessesAdditional 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-,-,-
