Airworthiness Directive · Amendment 39-15205 · Wings
Pilatus Aircraft Limited Model PC-6 Series Airplanes
Superseded. A later AD replaced this one: AD 2009-18-03. Comply with the one in force.
This AD applies to:
(1) Models PC-6, PC-6-H1, PC-6-H2, PC-6/350, PC-6/350-H1, PC-6/350-H2, PC-6/A, PC-6/A-H1, PC-6/A-H2, PC-6/B-H2, PC-6/B1-H2, PC-6/B2-H2, PC-6/B2-H4, PC-6/C-H2, and PC-6/C1-H2 airplanes (these airplanes are also identified as Fairchild Republic Company PC-6 airplanes, Fairchild Industries PC-6 airplanes, Fairchild Heli Porter PC-6 airplanes, or Fairchild-Hiller Corporation PC-6 airplanes);
(2) Manufacturer serial numbers (MSN) 101 through 999 and MSN 2001 through 2092;
(3) Airplanes that are equipped with left wing strut fitting part number (P/N) 6102.0041.00, P/N 111.35.06.055, P/N 111.35.06.184, or P/N 111.35.06.185; or equipped with right wing strut fitting P/N 6102.0041.00, P/N 111.35.06.056, P/N 111.35.06.184, or P/N 111.35.06.186, or FAA-approved equivalent part numbers; and
(4) Airplanes that are certificated in any category.
We are adopting a new airworthiness directive (AD) for the products listed above that would supersede existing ADs. 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:
Unless already done, do the following actions:
(1) For airplanes that have not had both wing strut fittings replaced within the last 100 hours time-in-service (TIS) since September 26, 2007 (the effective date of this AD) or inspected using an eddy current inspection method following Pilatus Aircraft Ltd. Service Bulletin No. 57-004, dated April 16, 2007, within the last 100 hours TIS since September 26, 2007 (the effective date of this AD): Before further flight after September 26, 2007 (the effective date of this AD), visually inspect the upper wing strut fittings and examine the spherical bearings following Pilatus Aircraft Ltd. Service Bulletin No. 57-005, dated August 30, 2007.
(2) For all airplanes: Within 25 hours TIS after September 26, 2007 (the effective date of this AD) or within 30 days after September 26, 2007 (the effective date of this AD), whichever occurs first, visually and using eddy current methods, inspect the upper wing strut fittings and examine the spherical bearings following Pilatus Aircraft Ltd. Service Bulletin No. 57-005, dated August 30, 2007.
(3) For all airplanes: After doing the inspection specified in paragraph (f)(2) of this AD, repetitively at intervals not to exceed 100 hours TIS or 3 months, whichever occurs first, visually and using eddy current methods, inspect the upper wing strut fittings and examine the spherical bearings following Pilatus Aircraft Ltd. Service Bulletin No. 57-005, dated August 30, 2007.
(4) For all airplanes: If during any inspection required by paragraph (f)(1), (f)(2), or (f)(3) of this AD cracks are found in the upper wing strut fitting, before further flight, replace the wing strut fitting following the Accomplishment Instructions in Pilatus Aircraft Ltd. Service Bulletin No. 57-005, dated August 30, 2007. Replacement of one or both upper wing strut fitting(s) does not terminate the repetitive inspection specified in paragraph (f)(3) of this AD.
(5) For all airplanes: If during any inspection required by paragraph (f)(1), (f)(2), or (f)(3) of this AD the spherical bearing is found not in conformity, before further flight, replace the bearing following the Accomplishment Instructions in Pilatus Aircraft Ltd. Service Bulletin No. 57-005, dated August 30, 2007.
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.
