Airworthiness Directive · Amendment 39-12743 · CFE Company Model CFE738-1-1B Turbofan Engines
CFE Company Model CFE738-1-1B Turbofan Engines
This airworthiness directive (AD) is applicable to CFE Company model CFE738-1-1B turbofan engines with high pressure turbine (HPT) stage 1 aft cooling plates, part number (P/N) 6083T38P07, and HPT stage 2 disks, P/N's 6083T92P06, 6083T92P07, 6083T92P08, 6083T92P10, and 6083T92P11, installed. These engines are installed on, but not limited to Dassault-Breguet Falcon 2000 series airplanes.
This amendment adopts a new airworthiness directive (AD), that is applicable to CFE Company Model CFE738-1-1B turbofan engines. This amendment requires replacing the high pressure turbine (HPT) stage 1 aft cooling plate and HPT stage 2 disk at or before they reach new reduced life cycle limits. This amendment is prompted by analysis of the existing life cycle limits by the engine manufacturer. The actions specified by this AD are intended to prevent failure of the HPT stage 1 aft cooling plate and HPT stage 2 disk, which could result in an uncontained engine failure and damage to the airplane.
