WASHINGTON, Jan. 21 -- Federal Aviation Administration has issued a proposed rule called: Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes.

The proposed rule was published in the Federal Register on Jan. 21 by Steven W. Thompson, Acting Deputy Director, Compliance & Airworthiness Division, Aircraft Certification Service.

Summary: The FAA proposes to adopt a new airworthiness directive (AD) for certain Pilatus Aircraft Ltd. (Pilatus) Model PC-12/47E airplanes. This proposed AD was prompted by a report that, during an engine start on the ground, the airplane battery voltage dropped to a value that resulted in an avionic system shutdown. This proposed AD would require incorporating a temporary revision into the existing pilot's oper...