Squawk Box

October 2000 Issue

ELT Goes Zap

Artex battery packs may leak and corrode, leading to component failure

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


The FAA has issued a special airworthiness bulletin to inform owners of Artex ELT equipment of a potential hazard. The FAA says there have been reports of Artex 110-4 ELT battery packs venting and leaking acid. In one case, the battery case failed and a piece of it became lodged in the rudder control cable of the airplane, chipping the pulley.

Engineers have concluded that, as the airplanes descend, outside air occasionally breaks the seal on the battery box, allowing moi...

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