REG NASA-LLIS-0277--1993 Lessons Learned Closure of the TDL During Flight Operations.pdf

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1、Lessons Learned Entry: 0277Lesson Info:a71 Lesson Number: 0277a71 Lesson Date: 1993-07-09a71 Submitting Organization: JPLa71 Submitted by: Jim TaylorSubject: Closure of the TDL During Flight Operations Abstract: Voyager inflight receiver failures required rapid development of operational workaround

2、procedures. This required the facilities of the Telecommunications Development Laboratory (TDL), but it had been shut down after Voyager launch.Projects should plan to keep development facilities functional after launch to permit inflight troubleshooting, else they should have a plan in place to qui

3、ckly reactivate critical facilities. Description of Driving Event: The Telecommunications Development Laboratory (TDL) shut down after Voyager launch, upon termination of that projects funding. Galileo planned to fund its TDL support at a later date.The Voyager inflight receiver failures required ra

4、pid development of operational workaround procedures to accomplish the Jupiter encounter with one spacecraft receiver with limited capability. Reactivation of TDL to a usable state took more than six months because personnel had to be reassigned and equipment had to be retrieved, repaired, and calib

5、rated.Additional Keyword(s): Management, Institutional, RF Performance VerificationLesson(s) Learned: A project development facility may be required for inflight spacecraft troubleshooting.Recommendation(s): Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IH

6、S-,-,-1. Projects should plan to keep development facilities functional after launch to a level necessary to accomplish inflight troubleshooting.2. If, for funding reasons, it is necessary to shut down project development facilities after launch, the project should develop a plan with the requisite

7、funding which will reactivate the facility in a very short period of time.Evidence of Recurrence Control Effectiveness: N/ADocuments Related to Lesson: N/AMission Directorate(s): N/AAdditional Key Phrase(s): a71 Administration/Organizationa71 Facilitiesa71 Flight OperationsAdditional Info: Approval Info: a71 Approval Date: 1985-12-19a71 Approval Name: Carol Dumaina71 Approval Organization: 125-204a71 Approval Phone Number: 818-354-8242Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-