2026-21-06
final ruleAirworthiness Directives; Pratt & Whitney Division Engines
Unsafe Condition: unsafe condition on these products.
Why matched: Airworthiness Directives; Pratt & Whitney Division Engines
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239 results found (5823ms)
2026-17-08
final ruleAirworthiness Directives; Pratt & Whitney Division Engines
Unsafe Condition: Incorrect shot peening on high-pressure compressor (HPC) drum rotor disk assemblies.
Why matched: Airworthiness Directives; Pratt & Whitney Division Engines
2026-09-02 Recurring
final ruleAirworthiness Directives; Pratt & Whitney RTX Corporation (Type Certificate Previously Held by Pratt & Whitney Division United Technologies Corporation) Engines
Unsafe Condition: Separation of the high-pressure compressor (HPC) 7th-stage integrally bladed rotor (IBR-7) due to crack indications in the HPC 15th-stage disks, front turbine hubs, high pressure turbine (HPT) 1st-...
Why matched: Airworthiness Directives; Pratt & Whitney RTX Corporation (Type Certificate Previously Held by Pratt & Whitney Division United Technologies Corporation) Engines
2023-22-02 Recurring
final ruleAirworthiness Directives; Pratt & Whitney Division Engines
Unsafe Condition: Discovery of multiple cracked outer diffuser cases (ODCs). Failure of the ODC could result in damage to the engine and airplane.
Why matched: Airworthiness Directives; Pratt & Whitney Division Engines
2023-19-02 Recurring
final ruleAirworthiness Directives; Pratt & Whitney Division Engines
Unsafe Condition: Failure of the LPC fan hub assembly, which could result in uncontained debris release, damage to the engine, and damage to the aircraft.
Why matched: Airworthiness Directives; Pratt & Whitney Division Engines
2022-12-12
final ruleAirworthiness Directives; Pratt & Whitney Division Turbofan Engines
Unsafe Condition: a manufacturing quality escape due to insufficient cooling of the LPT stage 5 air seal resulting in a reduction of the life of the low-cycle fatigue (LCF) life limit
Why matched: Airworthiness Directives; Pratt & Whitney Division Turbofan Engines
2022-07-13
final ruleAirworthiness Directives; Pratt & Whitney Division Turbofan Engines
Unsafe Condition: Corrosion of the air/oil heat exchanger leading to oil leaks and potential engine failure.
Why matched: Airworthiness Directives; Pratt & Whitney Division Turbofan Engines
2022-06-09 Recurring
final ruleAirworthiness Directives; Pratt & Whitney Division Turbofan Engines
Unsafe Condition: The unsafe condition on these products is the potential for cracks in certain 1st-stage LPC blades, which can lead to engine failure and fire during flight.
Why matched: Airworthiness Directives; Pratt & Whitney Division Turbofan Engines
2021-22-14 Recurring
final ruleAirworthiness Directives; Pratt & Whitney Division Turbofan Engines
Unsafe Condition: The LPT 4th-stage air sealing ring segment assemblies moving into the LPT 4th-stage blades knife edge seals, resulting in damage to the ring segment assemblies.
Why matched: Airworthiness Directives; Pratt & Whitney Division Turbofan Engines
2021-05-16 Recurring
final ruleAirworthiness Directives; Pratt & Whitney Division Turbofan Engines
Unsafe Condition: LPT 4th-stage vane cluster assemblies leaning back and notching into rotating LPT 4th-stage blades, causing some blades to fracture and release.
Why matched: Airworthiness Directives; Pratt & Whitney Division Turbofan Engines
2021-05-51
final ruleAirworthiness Directives; Pratt & Whitney Division Turbofan Engines
Unsafe Condition: The failure of a 1st-stage low-pressure compressor (LPC) blade on a PW4077 model turbofan engine resulting in an engine fire during flight.
Why matched: Airworthiness Directives; Pratt & Whitney Division Turbofan Engines
2020-25-09
final ruleAirworthiness Directives; Pratt & Whitney Division Turbofan Engines
Unsafe Condition: damaged or failed 3rd stage LPT duct segments on PW engines with the Talon IIB outer combustion chamber assembly configuration installed, resulting in engine surges, in-flight shutdowns, diversions...
Why matched: Airworthiness Directives; Pratt & Whitney Division Turbofan Engines
2019-06-07 Recurring
final ruleAirworthiness Directives; Pratt & Whitney Division Turbofan Engines
Unsafe Condition: cracks in the fuel nozzle braze joint and cracks in the fuel manifold tube adjacent to the elbow fitting
Why matched: Airworthiness Directives; Pratt & Whitney Division Turbofan Engines
2019-06-02
final ruleAirworthiness Directives; Pratt & Whitney Division Turbofan Engines
Unsafe Condition: High cycle fatigue (HCF) cracks found in the fuel nozzle supply manifold.
Why matched: Airworthiness Directives; Pratt & Whitney Division Turbofan Engines
2019-03-01 Recurring
final ruleAirworthiness Directives; Pratt & Whitney Division (PW) Turbofan Engines
Unsafe Condition: an in-flight failure of a 1st-stage low-pressure compressor (LPC) blade
Why matched: Airworthiness Directives; Pratt & Whitney Division (PW) Turbofan Engines
2018-21-11 Recurring
final ruleAirworthiness Directives; Pratt & Whitney Division (PW) Turbofan Engines
Unsafe Condition: certain LPC fan hubs could crack before their published life limit due to low-cycle fatigue
Why matched: Airworthiness Directives; Pratt & Whitney Division (PW) Turbofan Engines
2018-14-10
final ruleAirworthiness Directives; Pratt & Whitney Division Turbofan
Unsafe Condition: An unrecoverable engine in-flight shutdown (IFSD) after an ice crystal icing event.
Why matched: Airworthiness Directives; Pratt & Whitney Division Turbofan
2018-13-02
final ruleAirworthiness Directives; Pratt & Whitney Division Turbofan Engines
Unsafe Condition: multiple cracked 4th stage low-pressure turbine (LPT) air seals in the fleet
Why matched: Airworthiness Directives; Pratt & Whitney Division Turbofan Engines
2018-02-10 Recurring
final ruleAirworthiness Directives; Pratt & Whitney Division Turbofan Engines
Unsafe Condition: multiple cracked outer diffuser cases
Why matched: Airworthiness Directives; Pratt & Whitney Division Turbofan Engines
2017-12-03
final ruleAirworthiness Directives; Pratt & Whitney Division Turbofan Engines
Unsafe Condition: An unrecoverable engine in-flight shutdown (IFSD) after an ice crystal icing event, followed by an attempt to rapidly restart the engine with the Electronic Engine Control (EEC) Active Clearance Co...
Why matched: Airworthiness Directives; Pratt & Whitney Division Turbofan Engines
2017-05-05
final ruleAirworthiness Directives; Pratt & Whitney Division Turbofan Engines
Unsafe Condition: Uncontained failure of a high-pressure turbine (HPT) hub during takeoff, caused by a machining anomaly in the aft web/rim fillet area of the HPT 1st stage hub.
Why matched: Airworthiness Directives; Pratt & Whitney Division Turbofan Engines
2016-22-05 Recurring
final ruleAirworthiness Directives; Pratt & Whitney Division Turbofan Engines
Unsafe Condition: nine instances of fuel leaks on PW engines with the Talon IIB combustion chamber configuration installed
Why matched: Airworthiness Directives; Pratt & Whitney Division Turbofan Engines
2016-08-09
final ruleAirworthiness Directives; Pratt & Whitney Division Turbofan Engines
Unsafe Condition: Crack found in the high-pressure compressor (HPC) 10th stage disk, caused by surface scratches from a manual polishing procedure during manufacture.
Why matched: Airworthiness Directives; Pratt & Whitney Division Turbofan Engines
2015-22-03
final ruleAirworthiness Directives; Pratt & Whitney Division Turbofan Engines
Unsafe Condition: cracks in the barrel section of the LPT 4th stage IAS which could, if not corrected, result in uncontained IAS release, damage to the engine, and damage to the aircraft.
Why matched: Airworthiness Directives; Pratt & Whitney Division Turbofan Engines
2015-21-04
final ruleAirworthiness Directives; Pratt & Whitney Turbofan Engines
Unsafe Condition: Crack finds in the 6th stage low-pressure turbine (LPT) disk could lead to failure, uncontained disk release, damage to the engine, and damage to the airplane.
Why matched: Airworthiness Directives; Pratt & Whitney Turbofan Engines