Airworthiness Directive · Amendment 39-17506 · Fuselage
Pilatus Aircraft Ltd. Airplanes
This AD applies to Pilatus Aircraft Ltd. Model PC-6/B2-H4 airplanes, serial numbers 735, 863, 909, 923, 948, 956, 958, 977, 978, 979, 980, 981, 982, 985, and 986, certificated in any category.
We are adopting a new airworthiness directive (AD) for certain Pilatus Aircraft Ltd. Model PC-6/B2-H4 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 faulty rivets installed in the airframes during production could reduce the structural integrity of the airplane. We are issuing this AD to require actions to address the unsafe condition on these products.
Unless already done, do the following actions in paragraphs (f)(1) and (f)(2) of this AD.
(1) Before further flight after August 5, 2013 (the effective date of this AD), contact Pilatus Aircraft Ltd. at the address specified in paragraph (j)(3) of this AD to obtain FAA-approved inspection procedures approved specifically for compliance with this AD for inspecting the airplane for loose rivets and for places where rivets are missing, and do the inspection.
(2) If any rivet deficiencies are found during the inspection required in paragraph (f)(1) of this AD, before further fight, contact PILATUS Aircraft Ltd. at the address specified in paragraph (j)(3) of this AD to obtain an FAA-approved repair scheme approved specifically for compliance with this AD and incorporate the repair.
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.
