1、Lessons Learned Entry: 0068Lesson Info:a71 Lesson Number: 0068a71 Lesson Date: 1992-04-04a71 Submitting Organization: KSCa71 Submitted by: David PenningtonSubject: Unprotected Auxiliary Light Sources Description of Driving Event: The Hopkins University Telescope (HUT) experiment was being aligned in
2、 the operations and check-out building using a bright light that had been obtained from technicolor government services. After approximately two hours of use without incident, the light bulb shattered, with pieces falling into the HUT experiment, causing contamination. Alignment of the HUT was not a
3、 scheduled activity at KSC. Therefore a light source was not furnished with the experiment. Data recorded at KSC indicated that the HUT was not aligned to the cruciform as expected and that a light source would be required.Lesson(s) Learned: Using an unprotected external high-intensity lamp for illu
4、mination above sensitive flight hardware resulted in damage when the lamp exploded.Recommendation(s): Lead engineers should approve only protected light sources when there is a potential for damage to flight hardware.Evidence of Recurrence Control Effectiveness: N/ADocuments Related to Lesson: Provi
5、ded by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-N/AMission Directorate(s): N/AAdditional Key Phrase(s): a71 Flight Equipmenta71 Ground Operationsa71 Ground Equipmenta71 Hardwarea71 Parts Materials & Processesa71 PayloadsAdditional Info: Approval Info: a71 Approval Date: 1994-06-02a71 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-,-,-
