Airworthiness Directive · Amendment 39-22410 · Main landing gear attach section
Pilatus Aircraft Ltd. Airplanes
This AD applies to Pilatus Aircraft Ltd. Model PC-12/47E airplanes, serial number (S/N) 1300 and S/Ns 1451 and higher, certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for certain Pilatus Aircraft Ltd. (Pilatus) Model PC-12/47E airplanes. This AD was prompted by mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI identifies the unsafe condition as corrosion of the actuator attachment lug areas underneath the anti-rotation pads of the main landing gear (MLG) and nose landing gear (NLG). This AD requires replacing certain MLG and NLG electro-mechanical actuators. The FAA is issuing this AD to address the unsafe condition on these products.
(1) Replace each affected part as defined in paragraph (f)(1) of this AD with a serviceable part as defined in either paragraph (f)(2)(i) or (ii) of this AD, as follows:
(i) For airplanes with S/Ns 1300 and 1451 through 1663 inclusive, within 3 months after the effective date of the AD.
(ii) For airplanes with S/Ns 1664 through 1719 inclusive, and S/Ns 1721 through 1942 inclusive, within 300 hours time-in-service (TIS) after the effective date of this AD or within 12 months after the effective date of this AD, whichever occurs first.
(iii) For airplanes with S/Ns 1720, 2001 through 2202 inclusive, 2204, and 2206, within 600 hours TIS after the effective date of this AD or within 12 months after the effective date of this AD, whichever occurs first.
(2) As of the effective date of this AD, do not install an affected part as defined in paragraph (f)(1) of this AD on any airplane unless it has been reworked (inspection and modification) and made a serviceable part as defined in paragraph (f)(2)(i) of this AD.
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.
