Airworthiness Directive · Amendment 39-9646 · Superior Air Parts, Inc. Pistons Installed on Teledyne Continental Motors O-470 Series Reciprocating Engines
Superior Air Parts, Inc. Pistons Installed on Teledyne Continental Motors O-470 Series Reciprocating Engines
Superior Air Parts, Inc. Parts Manufacturer Approval (PMA) pistons, Part Numbers (P/N's) SA626992 and SA626992P15, installed on Teledyne Continental Motors Model O-470-K, -L, -R reciprocating engines. These engines are installed on but not limited to Cessna 182 series aircraft. Note: This airworthiness directive (AD) applies to each piston identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For pistons that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must use the authority provided in paragraph (b) to request approval from the Federal Aviation Administration (FAA). This approval may address either no action, if the current configuration eliminates the unsafe condition, or different actions necessary to address the unsafe condition described in this AD. Such a request should include an assessment of the effect of the changed configuration on the unsafe condition addressed by this AD. In no case does the presence of any modification, alteration, or repair remove any piston from the applicability of this AD.
This amendment adopts a new airworthiness directive (AD), applicable to certain Superior Air Parts, Inc. Parts Manufacturer Approval (PMA) pistons installed on Teledyne Continental Motors O-470 series reciprocating engines, that requires removal from service of certain pistons. This amendment is prompted by piston failures. The actions specified by this AD are intended to prevent piston failure, which can result in engine power loss, engine failure and loss of the aircraft.
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.
