May 2001 Issue

Bundle of Joy

Poor wire routing, lack of fuses cause Citabria mag leads to melt

The following information is derived from the FAA’s Service Difficulty Reports and Aviation Maintenance Alerts. Click here to view "Airworthiness Directives."


A sudden and complete engine failure forced the pilot of an American Champion 7GCBC to make an off-airport landing.

Investigators determined the engine failure was caused by melted “P-lead” wires that were bundled with an overheated wire connecting the master switch and the overvoltage relay. The cause of the overheated wire could not be readily determined, but the affected wire was not protected by a fuse or circuit breaker.

The accident investigators and a team from Ame...

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