Airworthiness Directive · Amendment 39-13385 · Boeing Model 777-200 and 777-300 Series Airplanes
Boeing Model 777-200 and 777-300 Series Airplanes
Model 777-200 and 777-300 series airplanes having line numbers 2 through 297 inclusive, 299, and 300; certificated in any category.
This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 777-200 and 777-300 series airplanes, that requires application of high-temperature sealant in designated areas of the strut aft dry bay. The actions specified by this AD are intended to prevent leakage of hydraulic fluid into the strut aft dry bay, where high temperatures associated with the adjacent primary exhaust nozzle may ignite the fluid, resulting in an uncontrolled fire in the strut aft dry bay. This action is intended to address the identified unsafe condition.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
