Airworthiness Directive · Amendment 39-11049 · Aerospatiale Model ATR72 Series Airplanes
Aerospatiale Model ATR72 Series Airplanes
Model ATR72-102, -201, -202, and -212 series airplanes; as listed in Avions de Transport Regional Service Bulletin ATR72-57-1019, dated July 7, 1997; certificated in any category.
This amendment adopts a new airworthiness directive (AD), applicable to certain Aerospatiale Model ATR72 series airplanes, that requires a one-time inspection to detect damage of certain anchor nuts located on the upper surface of the wings, and replacement of the anchor nuts with new or serviceable nuts, if necessary. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to prevent failure of anchor nuts on the upper surface of the wings, which could result in reduced structural integrity of the airplane.
