Airworthiness Directive · Amendment 39-11261 · Lockheed Model L-1011-385 Series Airplanes
Lockheed Model L-1011-385 Series Airplanes
Model L-1011-385-1, -1-14, -1-15, and -3 series airplanes, as listed in Lockheed Service Bulletin 093-27-306, dated January 14, 1998; certificated in any category.
This amendment adopts a new airworthiness directive (AD), applicable to certain Lockheed Model L-1011-385 series airplanes, that requires repetitive inspections to detect discrepancies of the lower actuator pins and/or bushings of the horizontal stabilizer, and replacement of any discrepant component with a new component. Replacement of all four actuator pins and bushings terminates the repetitive inspections. This amendment is prompted by a report indicating that a fractured lower actuator pin of the horizontal stabilizer was detected. The actions specified by this AD are intended to detect and correct discrepancies of the lower actuator pins and bushings of the horizontal stabilizer, which could result in reduced structural integrity of the horizontal stabilizer control system, and consequent reduced controllability of the airplane.
