1、Lessons Learned Entry: 0313Lesson Info:a71 Lesson Number: 0313a71 Lesson Date: 1993-08-03a71 Submitting Organization: MSFCa71 Submitted by: Baggs, EllisSubject: Electrical Cable, Splicing Description of Driving Event: The shuttle IUS was not designed to be maintained. Consequently, no electrical con
2、nectors were used. During system testing, some components failed. In the process of replacing the failed components, electrical reconnection was made by splicing. Cables that were respliced were shorter in length and less reliable.Lesson(s) Learned: Splicing of electrical cables reduces the length a
3、nd may increase the probability of cable malfunction.Recommendation(s): In designs where cutting of electrical cables and subsequent reconnect by splicing may become necessary, provide sufficient slack in the cable to allow splicing.Evidence of Recurrence Control Effectiveness: It can be seen by rev
4、iew of design that provision of slack would decrease the likelihood of placing additional strain on a spliced wire, and consequently decrease the probability of cable failure.Documents Related to Lesson: N/AMission Directorate(s): Provided by IHSNot for ResaleNo reproduction or networking permitted
5、without license from IHS-,-,-N/AAdditional Key Phrase(s): a71 Hardwarea71 Logisticsa71 Parts Materials & ProcessesAdditional Info: Approval Info: a71 Approval Date: 1994-08-17a71 Approval Name: Baggs, Ellisa71 Approval Organization: EL01a71 Approval Phone Number: 205-544-3293Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
