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2025-26-04

final rule

Airworthiness Directives; International Aero Engines LLC Engines

Unsafe Condition: Fan blade fracture events, which can result in a fuel leak and uncontrolled engine fire, leading to damage to the airplane.

Effective: Feb 17, 2026 Category: engine Compliance: Within the time specified in the AD, which corresponds to the normal scheduled maintenance for mo...

Why matched: Airworthiness Directives; International Aero Engines LLC Engines

2024-14-04

final rule

Airworthiness Directives; International Aero Engines, LLC

Unsafe Condition: The fracture of a low-pressure compressor (LPC) 1st-stage integrally bladed rotor (IBR-1) caused by an aerodynamic excitation from a misaligned inlet guide vane (IGV) located directly upstream of t...

Effective: Aug 20, 2024 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; International Aero Engines, LLC

Technical illustration of an aircraft turbine engine assembly
Problem area Engine

2024-06-14

final rule

Airworthiness Directives; International Aero Engines, LLC Engines

Unsafe Condition: Operating in a condition where the HPC 2nd stage rotors and HPC 4th stage rotors have potentially degraded knife-edge seals and abrasive coating of the rear wing 4th stage rotor due to having been ...

Effective: Jun 3, 2024 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; International Aero Engines, LLC Engines

2024-05-11

final rule

Airworthiness Directives; International Aero Engines, LLC Engines

Unsafe Condition: The condition, if not addressed, could result in uncontained hub failure, release of high-energy debris, damage to the engine, damage to the airplane, and loss of the airplane.

Effective: Apr 11, 2024 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; International Aero Engines, LLC Engines

2023-20-11

final rule

Airworthiness Directives; International Aero Engines, LLC Engines

Unsafe Condition: heat-induced cracking at the forward and aft knife edge seals and uncontained separation of the HPC rear hub, which could result in uncontained debris release, damage to the engine, damage to the a...

Effective: Nov 1, 2023 Category: aircraft Compliance: Within the compliance times specified, unless already done.

Why matched: Airworthiness Directives; International Aero Engines, LLC Engines

2023-16-07

final rule

Airworthiness Directives; International Aero Engines, LLC Engines

Unsafe Condition: The high-pressure turbine (HPT) 1st-stage hub and HPT 2nd-stage hub are susceptible to failure due to a material anomaly, which could result in uncontained disk failure, release of high-energy debr...

Effective: Aug 28, 2023 Category: engine Compliance: Within 50 flight hours

Why matched: Airworthiness Directives; International Aero Engines, LLC Engines

Technical illustration of an aircraft turbine engine assembly
Problem area Engine

2021-19-10

final rule

Airworthiness Directives; International Aero Engines, LLC Turbofan Engines

Unsafe Condition: The failure of the HPT disk due to an undetected subsurface material defect that may affect the life of the part, which could result in uncontained HPT disk failure, release of high-energy debris, ...

Effective: Sep 27, 2021 Category: engine Compliance: Within 30 days after the effective date of this AD

Why matched: Airworthiness Directives; International Aero Engines, LLC Turbofan Engines

2020-08-04

final rule

Airworthiness Directives; International Aero Engines LLC, Turbofan Engines

Unsafe Condition: Failures of certain low-pressure turbine (LPT) 3rd-stage blades.

Effective: May 21, 2020 Category: aircraft Compliance: At the next engine shop visit, whichever occurs first.

Why matched: Airworthiness Directives; International Aero Engines LLC, Turbofan Engines

Technical illustration of an aircraft turbine engine assembly
Problem area Engine

2020-05-28

final rule

Airworthiness Directives; International Aero Engines LLC Turbofan Engines

Unsafe Condition: multiple reports of in-flight engine shutdowns as the result of high-cycle fatigue causing fracture of certain parts of the main gearbox (MGB) assembly

Effective: Apr 21, 2020 Category: engine Compliance: Before further flight for ETOPS flights, within 50 flight hours after the effective date of this ...

Why matched: Airworthiness Directives; International Aero Engines LLC Turbofan Engines

2020-06-02 Recurring

final rule

Airworthiness Directives; International Aero Engines, LLC Turbofan Engines

Unsafe Condition: Wear and fracture of the turbine piston seal releasing debris that impacted the LPT 3rd-stage blades.

Effective: Apr 6, 2020 Category: aircraft Compliance: Within 15 days on engines operating on extended operations (ETOPS) flights and within 45 days on ...

Why matched: Airworthiness Directives; International Aero Engines, LLC Turbofan Engines

Technical illustration of an aircraft turbine engine assembly
Problem area Engine

2019-25-01

final rule

Airworthiness Directives; International Aero Engines, LLC Turbofan Engines

Unsafe Condition: Failure of the LPT 3rd-stage blades, failure of one or more engines, loss of thrust control, and loss of the airplane.

Effective: Dec 16, 2019 Category: engine Compliance: Within the times specified in the compliance section of this AD

Why matched: Airworthiness Directives; International Aero Engines, LLC Turbofan Engines

2019-06-01

final rule

Airworthiness Directives; International Aero Engines Turbofan Engines

Unsafe Condition: The discovery of incorrect serial numbers in the identification of LPT disks in AD 2018-24-01.

Effective: Apr 10, 2019 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; International Aero Engines Turbofan Engines

2018-21-10

final rule

Airworthiness Directives; International Aero Engines (IAE) Turbofan Engines

Unsafe Condition: Reports of in-flight engine shutdowns and aborted take-offs as the result of certain parts affecting the durability of the rear high-pressure compressor (HPC) rotor hub knife edge seal.

Effective: Dec 12, 2018 Category: engine Compliance: At the next engine shop visit

Why matched: Airworthiness Directives; International Aero Engines (IAE) Turbofan Engines

2018-22-02

final rule

Airworthiness Directives; International Aero Engines Turbofan Engines

Unsafe Condition: corrosion found on the HPC front hub, part number (P/N) 30G2401, installed

Effective: Dec 12, 2018 Category: aircraft Compliance: Within 120 days after the effective date of this AD

Why matched: Airworthiness Directives; International Aero Engines Turbofan Engines

2018-13-03

final rule

Airworthiness Directives; International Aero Engines Turbofan Engines

Unsafe Condition: Damage to the engine fan hub found during an engine shop visit of an IAE PW1100G-series turbofan engine, believed to be the result of the installation of the inlet cone without using alignment pins...

Effective: Jul 11, 2018 Category: engine Compliance: Before further flight

Why matched: Airworthiness Directives; International Aero Engines Turbofan Engines

Technical illustration of an aircraft turbine engine assembly
Problem area Engine