1、Lessons Learned Entry: 0114Lesson Info:a71 Lesson Number: 0114a71 Lesson Date: 1992-08-24a71 Submitting Organization: KSCa71 Submitted by: David PenningtonSubject: The Digital Computer Unit Memory Loader Description of Driving Event: The memory and registers of the main engine controller digital com
2、puter unit interface must be loaded and read and must provide discrete controls and status indicators compatible with a punched tape reader and teletypewriter interface for automatic program loading. Inadequate grounding of the DCU memory loader (i.e., Ground cables not connected, connected improper
3、ly, or in deteriorated condition) could result in electric shock injury to personnel.Lesson(s) Learned: Inadequate grounding of the digital computer unit (DCU) memory loader can cause electrical shock injury to personnel.Recommendation(s): Update OMI to include a ground verification test of the DCU
4、memory loader prior to beginning operations.Evidence of Recurrence Control Effectiveness: N/ADocuments Related to Lesson: N/AProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Mission Directorate(s): N/AAdditional Key Phrase(s): a71 Energya71 Test & VerificationAdditional 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-,-,-
