Airworthiness Directive · Amendment 39-11438 · General Electric Company CF6-80E1A2 Series Turbofan Engines
General Electric Company CF6-80E1A2 Series Turbofan Engines
General Electric Company (GE) CF6-80E1A2 series turbofan engines, with stage 2 high pressure turbine (HPT) disks, part number (P/N) 1639M50P03, and HPT impeller spacers, P/N 1473M85P02, installed. These engines are installed on but not limited to Airbus Industrie A330 series airplanes.
This amendment adopts a new airworthiness directive (AD) that is applicable to General Electric Company (GE) CF6-80E1A2 series turbofan engines. This action requires removing from service stage 2 high pressure turbine (HPT) disks and impeller spacers prior to exceeding new, lower cyclic life limits and imposes a drawdown program for those parts that currently exceed, or will exceed, the new lower limits. This amendment is prompted by the results of a refined low cycle fatigue (LCF) analysis. The actions specified in this AD are intended to prevent LCF cracking and failure of stage 2 HPT disks and impeller spacers, which could result in an uncontained engine failure and damage to the aircraft.
