EASA Regulations for General Electric CF34-10

4 airworthiness directives and regulations affecting General Electric CF34-10.

EASA AD US-2025-14-03

Turbine Engine - High-Pressure Turbine Front Rotating Air Seal - Inspections

The Federal Aviation Administration Airworthiness Directive 2025-14-03 is a final rule addressing certain General Electric Company CF34-10E series engines. It mandates inspections of the high-pressure turbine (HPT) front rotating air seal due to reported cracks, affecting models CF34-10E2A1, CF34-10E6, CF34-10E6A1, CF34-10E7, CF34-10E7-B, CF34-10E5, and CF34-10E5A1. The directive requires fluorescent penetrant inspections and possible replacement of the HPT front rotating air seal or rotor disk to ensure continued airworthiness.

Aug 21, 2025

Airworthiness DirectiveMaintenanceSafety MgmtGeneral Electric CF34-10

EASA AD US-2025-10-04

Engine - High Pressure Turbine Shroud / Low Pressure Turbine Nozzle Assemblies - Inspection

The Federal Aviation Administration's Airworthiness Directive 2025-10-04 addresses all General Electric Company Model CF34-10E2A1, CF34-10E5, CF34-10E5A1, CF34-10E6, CF34-10E6A1, CF34-10E7, and CF34-10E7-B engines equipped with specific high-pressure turbine shroud/low-pressure turbine nozzle assemblies. This directive mandates inspections and rework due to failed retention features of support air ducts discovered during engine disassembly. The AD aims to prevent combustion case failure that could lead to engine separation and potential loss of the airplane.

May 26, 2025

Airworthiness DirectiveMaintenanceSafety MgmtGeneral Electric CF34-10

EASA AD US-2022-05-08

Engine - Strainer Assembly Screen - Inspection

The Federal Aviation Administration's Airworthiness Directive 2022-05-08 addresses certain General Electric Company CF34-10E model turbofan engines. It requires inspections and replacement of the stationary oil seal at the No. 1 forward bearing due to Teflon material contamination found in the A-sump oil strainer screen, which has caused in-flight shutdowns and unscheduled engine removals. This directive applies to engines with specific stationary oil seals installed or repaired after August 2014 and used with certain oil types.

Apr 7, 2022

Airworthiness DirectiveMaintenanceSafety MgmtGeneral Electric CF34-10

EASA AD US-2018-19-22

Engine - High-Pressure Turbine Front Rotating Air Seal - Replacement

The Federal Aviation Administration's Airworthiness Directive 2018-19-22 mandates replacement of certain high-pressure turbine (HPT) front rotating air seals on General Electric Company CF34-10A16, CF34-10E2A1, CF34-10E5, CF34-10E5A1, CF34-10E6, CF34-10E6A1, CF34-10E7, and CF34-10E7-B turbofan engines. This directive addresses cracks found in the HPT front rotating air seals that could lead to uncontained failures. The directive applies to specific parts identified in GE CF34-10E Service Bulletin 72-0347 R00 dated August 3, 2018.

Oct 15, 2018

Airworthiness DirectiveMaintenanceSafety MgmtGeneral Electric CF34-10