Airworthiness Directive · Amendment 39-15963 · Landing gear
Pilatus Aircraft Ltd. Models PC-12, PC-12/45, PC-12/47, and PC-12/47E Airplanes
Superseded. A later AD replaced this one: AD 2012-26-16. Comply with the one in force.
This AD applies to the following model and serial number airplanes, certificated in any category:
(1) Models PC-12, PC-12/45, PC-12/47, manufacturer serial numbers (MSNs) 101 through 544 and MSNs 546 through 888; and
(2) Model PC-12/47E, MSN 545 and MSNs 1001 through 1150.
We are superseding an existing airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI (two different MCAI) describes the unsafe condition as:
Unless already done, do the following actions:
(1) Limitations Section Actions: For all airplanes, before further flight after August 19, 2009 (the effective date of this AD), insert Structural and Component Limitations—Airworthiness Limitations, document 12-A-04-00-00-00A-000T-A, dated January 28, 2009 (for PC-12, PC-12/45, PC-12/47), and Structural and Component Limitations—Airworthiness Limitations, document 12-B-04-00-00-00A-000A-A, dated January 27, 2009 (for PC-12/47E), into the Limitations section of the FAA approved maintenance program (e.g., maintenance manual). The limitations section revision does the following:
(i) Establishes a life limit for torque tube P/N 532.50.12.047 and does not impose a life limit on torque tube P/N 532.50.12.064;
(ii) Requires doing initial and repetitive inspections of nose landing gear right hand upper drag link P/N 532.20.12.140 (for PC-12 and PC-12/45 airplanes) or P/N 532.20.12.289 (for all airplanes) in accordance with the time limits specified in the revision. The limitations do not allow installation of the upper drag link P/N 532.20.12.140 on PC-12/47 and PC-12/47E airplanes. The 4,000 landing limit for the upper drag link P/N 532.20.12.140 installed on the PC-12 and PC-12/45 is retained from AD 2003-14-07 through this limitation requirement; and
(iii) Does not require doing initial and repetitive inspections of nose landing gear right hand upper drag link P/N 532.20.12.296; therefore, installation of upper drag link P/N 532.20.12.296 terminates the inspection requirement referenced in paragraph (f)(1)(ii) of this AD.
(2) Additional Torque Tube Actions:
(i) For PC-12 and PC-12/45, S/N 101 through 299, airplanes: Within the next 100 hours time-in-service (TIS) after August 19, 2009 (the effective date of this AD) or 1 year after August 19, 2009 (the effective date of this AD), whichever occurs first, replace the torque tube P/N 532.50.12.047 with torque tube P/N 532.50.12.064 following PILATUS AIRCRAFT LTD. Service Bulletin No: 32-021, dated November 21, 2008.
(ii) For all airplanes: As of August 19, 2009 (the effective date of this AD), do not install torque tube P/N 532.50.12.047.
Note: This AD differs from the MCAI and/or service information as follows: No differences.
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.
