Airworthiness Directive · Amendment 39-9219 · The Boeing Company Airplanes
The Boeing Company Airplanes
This AD applies to The Boeing Company MD-11, MD-11F.
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 adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas MD-11 series airplanes, that requires the installation of an electrically controlled slat system. This amendment is prompted by numerous incidents of inadvertent deployment of the slats while the airplane was in flight at cruise altitude. The actions specified by this AD are intended to prevent inadvertent deployment of the slats during flight, which could result in an abrupt pitch up of the airplane and consequent injury to crew and passengers; it could also result in significant vibrations and cause damage to the elevators.
