Unairworthy: Missing Safety Wire

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Some bolts have drilled heads for a reason: They are supposed to be safety wired. The first example is a wheel pant bracket. The left wheel pant bracket on this airplane was missing the safety wire. A discussion with the builder ensued until the right wheel pant was removed—that bolt had gone missing!

The second example is a prop governor screw. Should it come loose, the prop could overspeed, potentially necessitating a teardown of the prop and/or engine.

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Vic is a commercial pilot, CFII with ASMEL/ASES ratings, an A&P/IA, DAR, and EAA technical advisor and flight counselor. Passionately involved in aviation for over 40 years, he has built 11 aircraft and logged over 10,000 hours in 72 different kinds of aircraft. Vic volunteers as a Young Eagle pilot and Angel Flight pilot. He chairs the EAA Homebuilt Council and is a member of EAA’s board of directors. He also has his own sport aviation business called Base Leg Aviation.

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