1、Lessons Learned Entry: 0472Lesson Info:a71 Lesson Number: 0472a71 Lesson Date: 1995-06-13a71 Submitting Organization: LERCa71 Submitted by: Judy TerlepSubject: Replaceable Contacts in Electrical Connectors - Scout Program Description of Driving Event: Recessed electrical contacts in connectors, with
2、 replaceable pins or sockets, were observed as a result of a functional failure or during visual examination. The contacts were either not properly locked or became unlocked in the connector insert. During connector mating, the mating contact would push the contact backwards. Improper locking was of
3、ten the result of deformed or broken retention clips.The Scout Program fabricated a set of push test tools. These tools have the proper mating contact and permit the application of an appropriate force on the contact in an assembled connector. After initial wiring and modifications of the electrical
4、 connector, a push test was performed on each contact in the connector. Contacts and connectors failing the push test were rejected per established procedures.Lesson(s) Learned: Electrical connector contacts with replaceable pins or sockets may not function properly from damage caused by the mating
5、processes.Recommendation(s): Perform a push test prior to mating to detect and screen for unlocked contacts where the connector has replaceable contacts.Evidence of Recurrence Control Effectiveness: This test significantly reduced the problem of recessed contacts in electrical connectors and decreas
6、ed costly replacement in the field.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Documents Related to Lesson: N/AMission Directorate(s): N/AAdditional Key Phrase(s): a71 Hardwarea71 Parts Materials & Processesa71 Test & VerificationAdditional Info: Approval Info: a71 Approval Date: 1996-11-01a71 Approval Name: Sell Jamesa71 Approval Organization: 501-4a71 Approval Phone Number: 216-433-8618Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
