This AD was prompted by a report of a certain procedure in the aircraft maintenance manual (AMM) that incorrectly described a visual inspection of the fire handle. The FAA is issuing this AD to address snap wires made of incorrect material, which, if not detected and corrected, and combined with an engine fire, could lead to a failure of the engine fire handle to operate, possibly resulting in an uncontrolled engine fire and reduced control of the airplane.

2021-24-07

This AD was prompted by a report of a certain procedure in the aircraft maintenance manual (AMM) that incorrectly described a visual inspection of the fire handle. The FAA is issuing this AD to address snap wires made of incorrect material, which, if not detected and corrected, and combined with an engine fire, could lead to a failure of the engine fire handle to operate, possibly resulting in an uncontrolled engine fire and reduced control of the airplane.

This AD applies to the ATR–GIE Avions de Transport Régional airplanes specified in paragraphs (c)(1) and (2) of this AD, certificated in any category, as identified in European Union Aviation Safety Agency (EASA) Emergency AD 2021-0237-E, dated November 4, 2021 (EASA AD 2021-0237-E). (1) Model ATR42-200, -300, -320, and -500 airplanes. (2) Model ATR72-101, -102, -201, -202, -211, -212, and -212A airplanes.

FAA