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When it comes to electrical wiring maintenance, consider the basic rule in medicine: "First, do no harm." Perhaps the best guidance for avoiding inadvertent maintenance malpractice is a Federal Aviation Administration (FAA) document known as the Aircraft Wiring Practices Job Aid 1.0. It presents good, bad and outright dangerous wiring practices.
Job Aid 1.0 offers cautionary cases of what to avoid while illustrating "best practices" for prudent and proactive wiring maintenance and modification.
Job Aid 1.0 is in the form of a heavily illustrated PowerPoint presentation of some 164 slides. In the interests of brevity, we highlight here key elements that were summarized in one page by the Lectromechanical Design Company of Dulles, Virginia. The company specializes in wiring integrity and aging issues for the aerospace industry. Good husbandry of wiring complements the FAA's major initiative to inspect wiring. Lectromec's summary of Job Aid 1.0 takes the form of basic commandments:
1. Thou shalt not consider wire as immortal. At...