Airworthiness Directive · Amendment 39-18320 · General Electric Company Turbofan Engines
General Electric Company Turbofan Engines
This AD applies to all General Electric Company (GE) GEnx-1B model turbofan engines with oil filler cap, part number (P/N) 2349M62G01, installed, that do not contain any of the following markings after the P/N on the oil filler cap scupper: “P/M BALL PP,” or “RW,” or “79-0022.”
We are adopting a new airworthiness directive (AD) for all General Electric Company (GE) GEnx-1B turbofan engine models. This AD was prompted by reports of GEnx-1B engine oil loss. This AD requires removal and replacement of the non-conforming ball valve in the oil filler cap. We are issuing this AD to prevent loss of engine oil, which could lead to failure of one or more engines, loss of thrust control, and damage to the airplane.
(1) Within 360 cycles in service after the effective date of this AD, remove the ball valve, P/N 2349M68P01, from the affected oil filler cap and replace with a part eligible for installation.
(2) Reserved.
