Airworthiness Directive · Amendment 39-9604 · ATR - GIE Avions de Transport R gional Airplanes
ATR - GIE Avions de Transport R gional Airplanes
This AD applies to ATR - GIE Avions de Transport R gional ATR42-200, ATR42-300, ATR42-320, ATR42-500, ATR72-101, ATR72-102, ATR72-201, ATR72-202, ATR72-211, ATR72-212, ATR72-212A.
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 supersedes an existing airworthiness directive (AD), applicable to all Aerospatiale Model ATR-42 and ATR-72 series airplanes. Unless modifications are accomplished or alternative procedures and training are adopted, that AD currently prohibits operation of the airplane in certain icing conditions, and requires restrictions on the use of the autopilot in certain conditions. That AD was prompted by an FAA determination that, during flight, in certain icing conditions, and with the airplane in a specific flight configuration, a ridge of ice can form on the wing and cause an interruption in the airflow over the ailerons, aileron deflection, and resultant lateral control forces. The actions specified by that AD are intended to prevent a roll upset from which the flight crew may be unable to recover. This action adds requirements for modification of the deicing boots on the leading edge of the wing and various follow-on actions. This action also removes certainlimitations and procedures.
