1、Lessons Learned Entry: 0089Lesson Info:a71 Lesson Number: 0089a71 Lesson Date: 1992-06-15a71 Submitting Organization: KSCa71 Submitted by: David PenningtonSubject: Orbiter Structural Integrity Description of Driving Event: During launch and ascent, ice from the ET, SRBs, and orbiter may be dislodged
2、 by ignition vibroacoustic or aerodynamic forces and impact the orbiter windows or thermal protection system (TPS) with sufficient force to dislodge TPS or damage windows.Lesson(s) Learned: During launch ice may be dislodged by vibroacoustic or aerodynamic forces and impact the orbiters windows or T
3、PS with enough force to cause damage.Recommendation(s): Ensure all lines are maintained with proper insulation and all surfaces are visually inspected for excessive ice build-up prior to clear for launch.Evidence of Recurrence Control Effectiveness: N/ADocuments Related to Lesson: N/AMission Directo
4、rate(s): Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-a71 Space Operationsa71 Exploration SystemsAdditional Key Phrase(s): a71 Flight Operationsa71 Flight Equipmenta71 Launch Processa71 Launch Vehiclea71 Parts Materials & ProcessesAdditional 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-,-,-
