EASA AD US-2018-14-12
Engine - Air / Oil Extension Duct - Removal / Replacement
Summary
The Federal Aviation Administration's Airworthiness Directive 2018-14-12 addresses all General Electric Company GEnx-1B turbofan engines equipped with specific air/oil extension ducts. This directive mandates the removal and replacement of affected extension ducts, part numbers 2332M85P01 or 2331M25G03, due to a reported center vent tube failure that caused loss of oil pressure and in-flight engine shutdown.
What Changed
This new airworthiness directive introduces a mandatory requirement to remove and replace the specified air/oil extension ducts during the next engine shop visit. It prohibits the installation of the affected parts after the effective date to prevent recurrence of the unsafe condition.
Why It Matters
This directive is critical for aviation professionals as it prevents potential engine failures that could lead to loss of thrust control and jeopardize flight safety. Operators and maintenance organizations must ensure compliance to avoid in-flight shutdowns and maintain regulatory adherence.
What To Do
Operators must remove and replace the affected air/oil extension ducts, part numbers 2332M85P01 or 2331M25G03, at the next engine shop visit after August 30, 2018. Installation of these parts is prohibited after this date. Requests for alternative methods of compliance can be submitted to the FAA following prescribed procedures.
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