Airworthiness Directive · Amendment 39-17645 · Electrical power
PILATUS Aircraft Ltd. Airplanes
This AD applies to PILATUS Aircraft Ltd. Model PC-7 airplanes, manufacturers' serial numbers (MSN) 101 through 618, certificated in any category.
We are adopting a new airworthiness directive (AD) for certain PILATUS Aircraft Ltd. Model PC-7 airplanes. This AD results from mandatory continuing airworthiness information (MCAI) issued by the aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as chafing on the wiring harness attached to the engine mounting frame on the right-hand side of the engine compartment, which could cause a short circuit and could result in a fire in the engine compartment. We are issuing this AD to require actions to address the unsafe condition on these products.
Unless already done, do the actions specified in paragraphs (f)(1) and (f)(2) of this AD.
(1) Within the next 90 days after November 29, 2013 (the effective date of this AD), visually inspect the wiring harness and the flexile duct in the engine compartment for signs of chafing following the Accomplishment Instructions in PILATUS Aircraft Ltd. PC-7 Service Bulletin No. 24-009, dated September 6, 2013.
(2) If, during the inspection required in paragraph (f)(1) of this AD, any signs of chafing are found, before further flight, take all necessary corrective actions following the Accomplishment Instructions in PILATUS Aircraft Ltd. PC-7 Service Bulletin No. 24-009, dated September 6, 2013.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
