Airworthiness Directives; Aerospace & Defense Oxygen Systems SaS (Part of Safran Aerosystems) (Formerly Known as Air Liquide) Portable Breathing Equipment (PBE)
Unsafe Condition: Occurrences of PBE not delivering oxygen once donned, caused by a manufacturing issue.
Effective: Mar 12, 2026Category: aircraftCompliance: Within 14 days or 3 months, depending on the applicable conditions, unless the PBE is over the li...
Why matched: Airworthiness Directives; Aerospace & Defense Oxygen Systems SaS (Part of Safran Aerosystems) (Formerly Known as Air Liquide) Portable Breathing Equipment (PBE)
Airworthiness Directives; General Electric Company Engines
Unsafe Condition: Fracture and subsequent uncontained release of certain HPC stage 5 blisks due to a nonconforming indication in a single forged ingot used to manufacture the affected parts.
Effective: Mar 11, 2026Category: aircraftCompliance: Before further flight
Why matched: Airworthiness Directives; General Electric Company Engines
Airworthiness Directives; General Electric Company Engines
Unsafe Condition: High-pressure turbine (HPT) stage 1 and HPT stage 2 disks manufactured from powder metal material suspected to contain iron inclusion, which may cause reduced material properties and a lower fatigu...
Effective: Feb 6, 2026Category: aircraftCompliance: Within 12 months of effective date (February 6, 2026).
Why matched: Airworthiness Directives; General Electric Company Engines
Airworthiness Directives; Aerospace & Defense Oxygen Systems SaS (Part of Safran Aerosystems) (Formerly Known as Air Liquide)
Unsafe Condition: Occurrences of incorrect usage of PBE have been reported, which could lead to flight or cabin crewmember incapacitation, possibly affecting crewmember capability to accomplish tasks during an emerg...
Effective: Jan 14, 2026Category: aircraftCompliance: Within 12 months of the effective date of January 14, 2026.
Why matched: Airworthiness Directives; Aerospace & Defense Oxygen Systems SaS (Part of Safran Aerosystems) (Formerly Known as Air Liquide)
Airworthiness Directives; Aerospace & Defense Oxygen Systems SaS (Part of Safran Aerosystems) (Formerly Known as Air Liquide)
Unsafe Condition: occurrences of incorrect usage of certain PBEs have been reported, which could lead to flight or cabin crewmember incapacitation, possibly affecting crewmember capability to accomplish tasks during...
Effective: Dec 24, 2025Category: aircraftCompliance: Before further flight
Airworthiness Directives; GE Aviation Czech s.r.o. (Type Certificate Previously Held by WALTER Engines a.s., Walter a.s., and MOTORLET a.s.) Engines
Unsafe Condition: Failure of the centrifugal compressor case.
Effective: Oct 21, 2025Category: aircraftCompliance: Within 50 flight hours
Why matched: Airworthiness Directives; GE Aviation Czech s.r.o. (Type Certificate Previously Held by WALTER Engines a.s., Walter a.s., and MOTORLET a.s.) Engines
Airworthiness Directives; General Electric Company Engines
Unsafe Condition: Cracks found in the high-pressure turbine (HPT) front rotating air seal, which could result in uncontained release of the HPT front rotating air seal or HPT rotor disk, damage to the engine, and da...
Effective: Aug 25, 2025Category: aircraftCompliance: Within the compliance times specified in the AD, unless already done.
Why matched: Airworthiness Directives; General Electric Company Engines
Airworthiness Directives; General Electric Company Engines
Unsafe Condition: The detection of iron inclusion in turbine disks manufactured from the same powder metal material used to manufacture certain HPT stage 1 and HPT stage 2 disks for the above-referenced engines may ...
Effective: Jul 8, 2025Category: aircraftCompliance: At the next piece-part exposure after the effective date of the AD, or before the affected HPT st...
Why matched: Airworthiness Directives; General Electric Company Engines
Airworthiness Directives; General Electric Company Engines
Unsafe Condition: The retention features of the inner and outer support air ducts on GE Model CF34-10E series engines were found to have failed, which could result in possible engine separation and loss of the airpl...
Effective: Jun 26, 2025Category: engineCompliance: Within 50 flight hours
Why matched: Airworthiness Directives; General Electric Company Engines
Airworthiness Directives; General Electric Company Engines
Unsafe Condition: Degradation of the MN4 integrated circuit microprocessor solder balls in the FADEC can result in the engine not following throttle commands.
Effective: May 21, 2025Category: engineCompliance: Before further flight
Why matched: Airworthiness Directives; General Electric Company Engines
Airworthiness Directives; General Electric Company Engines
Unsafe Condition: Failure of the stage 2 aft turbine cooling plate part number 5166T27P01 due to an actual life limit less than the current limit, which could result in uncontained failure, release of high-energy de...
Effective: Apr 17, 2025Category: engineCompliance: Within 30 days after the effective date of this AD (April 17, 2025).
Why matched: Airworthiness Directives; General Electric Company Engines
Airworthiness Directives; General Electric Company Engines
Unsafe Condition: The failure of the stage 1 turbine forward cooling plate and stage 2 turbine aft cooling plate, which could result in uncontained engine failure and damage to the airplane.
Effective: Apr 8, 2025Category: aircraftCompliance: Within the compliance times specified in paragraphs (g)(1) through (3) of this AD, unless already...
Why matched: Airworthiness Directives; General Electric Company Engines
Airworthiness Directives; The Boeing Company Airplanes
Unsafe Condition: uncommanded deployment of a thrust reverser in flight at low altitude, which could result in loss of flight control of the airplane and loss of continued safe flight and landing.
Effective: Jan 13, 2025Category: engineCompliance: Before further flight
Why matched: Airworthiness Directives; The Boeing Company Airplanes
Airworthiness Directives; Safran Aerosystems (Formerly AVOX Systems Inc.; Scott Aviation) Oxygen Cylinder and Valve Assemblies, and Oxygen Valve Assemblies
Unsafe Condition: Reports of cylinder and valve assemblies having oxygen leakage from the valve assembly vent hole, caused by the absence of a guide that maintains appropriate spacing between certain parts, and by t...
Effective: Nov 26, 2024Category: aircraftCompliance: Within 50 flight hours
Why matched: Airworthiness Directives; Safran Aerosystems (Formerly AVOX Systems Inc.; Scott Aviation) Oxygen Cylinder and Valve Assemblies, and Oxygen Valve Assemblies
Airworthiness Directives; General Electric Company Engines, and Various Restricted Category Rotorcraft
Unsafe Condition: Inadequate braze coverage of the torque reference tube magnetic insert braze joint of the PT drive shaft assembly, which could result in improper torque and engine speed indications, creating an un...
Effective: Apr 23, 2024Category: aircraftCompliance: Within 50 flight hours
Why matched: Airworthiness Directives; General Electric Company Engines, and Various Restricted Category Rotorcraft
Airworthiness Directives; GE Aviation Czech s.r.o. (Type Certificate Previously Held by WALTER Engines a.s., Walter a.s., and MOTORLET a.s.) Engines
Unsafe Condition: a crack on the centrifugal compressor case mount pad weld area, caused by a non-conforming welding (lack of welding penetration)
Effective: Apr 11, 2024Category: aircraftCompliance: Before further flight
Why matched: Airworthiness Directives; GE Aviation Czech s.r.o. (Type Certificate Previously Held by WALTER Engines a.s., Walter a.s., and MOTORLET a.s.) Engines
Airworthiness Directives; General Electric Company Engines, and Various Restricted Category Rotorcraft
Unsafe Condition: The torque reference tube magnetic insert braze joint of the power turbine drive shaft assembly may fail, resulting in improper torque and engine speed indications, which in combination with specif...
Effective: Apr 1, 2024Category: aircraftCompliance: Before further flight
Why matched: Airworthiness Directives; General Electric Company Engines, and Various Restricted Category Rotorcraft
Airworthiness Directives; GE Aviation Czech s.r.o. (Type Certificate Previously Held by WALTER Engines a.s., Walter a.s., and MOTORLET a.s.) Engines
Unsafe Condition: The life limit of a compressor case having part number M601-154.61 is not listed in the airworthiness limitations section of the existing engine maintenance manual, which could result in uncontaine...
Effective: Mar 28, 2024Category: engineCompliance: Within 12 months of the effective date (March 28, 2024).
Why matched: Airworthiness Directives; GE Aviation Czech s.r.o. (Type Certificate Previously Held by WALTER Engines a.s., Walter a.s., and MOTORLET a.s.) Engines