Airworthiness Directive · Amendment 39-10267 · Fokker Model F27 Mark 050 Series Airplanes
Fokker Model F27 Mark 050 Series Airplanes
Model F27 Mark 050 series airplanes, serial numbers 20103 through 20296 inclusive, 20304, 20305, 20308, and 20311; certificated in any category.
This amendment adopts a new airworthiness directive (AD), applicable to certain Fokker Model F27 Mark 050 series airplanes. This action requires modification of the air outlet opening of the engine air bypass duct. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified in this AD are intended to prevent accumulation of ice in the engine air intake duct and subsequent ingestion of ice into the engine, which could result in engine power fluctuations and reduced controllability of the airplane.
