Airworthiness Directive · Amendment 39-9780 · Piper Aircraft Inc. Airplanes
Piper Aircraft Inc. Airplanes
This AD applies to Piper Aircraft Inc. PA-31, PA-31-300, PA-31-325, PA-31-350, PA-31P, PA-31P-350, PA-31T, PA-31T1, PA-31T2, PA-31T3, PA-42, PA-42-1000, PA-42-720, PA-42-720R.
The models as the FAA's AD index lists them. The serial ranges, installed parts and exceptions are in the AD itself: read it at the FAA.
This amendment adopts a new airworthiness directive (AD) that applies to The New Piper Aircraft, Inc. (Piper) PA31, PA31P, PA31T, and PA42 series airplanes. This action requires inspecting for cracks beneath and in the area of the inboard aileron hinge bracket on the aileron spar and rib using dye penetrant methods, replacing any cracked aileron spar or rib, and replacing the inboard aileron hinge bracket with a hinge bracket of improved design. Several reports of cracks in the vicinity of the inboard aileron hinge bracket, aileron spar, and aileron rib prompted this proposed action. The actions specified by the proposed AD are intended to prevent structural failure of the aileron caused by cracks in the area of the inboard aileron hinge bracket, which, if not detected and corrected, could result in loss of control of the airplane.
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.
