Airworthiness Directive · Amendment 39-15935 · Electrical power
ATR Model ATR42-500 and ATR72-212A Airplanes
This AD applies to the airplanes identified in paragraphs (c)(1) and (c)(2) of the AD, certificated in any category.
(1) ATR Model ATR42-500 airplanes, manufacturer serial numbers (MSNs) 667, 669, and 671.
(2) ATR Model ATR72-212A airplanes, MSNs 756 to 784 inclusive, except MSNs 770, 773, and 783.
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from 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 describes the unsafe condition as:
Unless already done, do the following actions.
(1) Within 550 flight hours after the effective date of this AD, do a detailed inspection to verify the installation of the correct protection sleeves and the correct routing and clamping of the wire bundles. Do the actions in accordance with the Accomplishment Instructions of Avions de Transport Regional Service Bulletin ATR42-92-0020 or ATR72-92-1021, both dated October 17, 2008; as applicable.
(2) If any discrepancy is found during the inspection required by paragraph (f)(1) of this AD, before further flight, do all applicable corrective actions in accordance with the Accomplishment Instructions of Avions de Transport Regional Service Bulletin ATR42-92-0020 or ATR72-92-1021, both dated October 17, 2008; as applicable.
Note 1: This AD differs from the MCAI and/or service information as follows: No Differences.
