EASA Regulations for Pratt & Whitney PW4000

5 airworthiness directives and regulations affecting Pratt & Whitney PW4000.

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New ADs and bulletins for Pratt & Whitney PW4000, summarized like the ones below, every Monday.

EASA AD US-2026-21-06

Oct 20, 2026

Engine Fuel and Control - Pressure Burner Sensors - Replacement

The Federal Aviation Administration's Airworthiness Directive 2026-21-06 addresses safety issues in Pratt & Whitney Division engines, specifically models PW4052, PW4056, PW4060, PW4060A, PW4060C, PW4062, PW4062A, PW4152, PW4156, PW4156A, PW4158, PW4460, and PW4462. This directive mandates the replacement of pressure burner (Pb) sensors due to reports of tailpipe fires, loss of thrust control, and engine in-flight shutdowns caused by sensor deterioration. The AD aims to mitigate these unsafe conditions by ensuring timely sensor replacement.

Airworthiness Directive
  • Pratt & Whitney PW4000
  • Pratt & Whitney PW4052
  • Pratt & Whitney PW4056
  • Pratt & Whitney PW4060
  • Pratt & Whitney PW4060A
  • Pratt & Whitney PW4060C
  • Pratt & Whitney PW4062
  • Pratt & Whitney PW4062A
  • Pratt & Whitney PW4152
  • Pratt & Whitney PW4156
  • Pratt & Whitney PW4156A
  • Pratt & Whitney PW4158
  • Pratt & Whitney PW4460
  • Pratt & Whitney PW4462

EASA SIB SAIB-2025-06

Jul 23, 2025

High Pressure Turbines

The FAA Special Airworthiness Information Bulletin SAIB: 2025-06 provides information regarding a failure mode in the high pressure turbine (HPT) of Pratt & Whitney Division Model PW4050, PW4052, PW4056, PW4060, PW4060A, PW4060C, PW4062, PW4062A, PW4152, PW4156, PW4156A, PW4158, PW4160, PW4460, PW4462, and PW4650 engines. This bulletin alerts operators and maintainers about the potential for coating spalling on the 2nd stage HPT blade outer air seal leading to component failures but does not mandate any regulatory action. It references previous service bulletins and airworthiness directives related to similar issues.

Safety Information Bulletin
  • Pratt & Whitney PW4000

EASA AD US-2022-12-12

Jun 20, 2022

Engine - Low Pressure Turbine Stage 5 Air Seal - Replacement

The document titled "Engine - Low Pressure Turbine Stage 5 Air Seal - Replacement" is a Federal Aviation Administration (FAA) Airworthiness Directive (AD) addressing certain Pratt & Whitney PW4062 model turbofan engines. It mandates the removal and replacement of the low-pressure turbine (LPT) stage 5 air seal due to a manufacturing defect that reduces its low-cycle fatigue life. This AD aims to prevent potential engine damage and uncontained part release that could compromise aircraft safety.

Airworthiness Directive
  • Pratt & Whitney PW4000

EASA AD US-2019-06-02

Apr 24, 2019

[Correction] Engine Fuel - Fuel Nozzle - Replacement

Correction to Airworthiness Directive 2019-06-02 issued by the Federal Aviation Administration (FAA) addresses certain Pratt & Whitney Division PW4158 turbofan engines. This directive targets engines with specific serial numbers and requires replacement of fuel nozzles and fuel nozzle supply manifold assemblies due to high cycle fatigue cracks. It also mandates installation of new brackets and clamps on the fuel nozzle supply manifold assemblies to ensure continued airworthiness.

Airworthiness Directive
  • Pratt & Whitney PW4000

EASA AD US-2018-13-02

Jun 18, 2018

Engine - 4th Stage Low Pressure Turbine Air Seals - Replacement

Federal Aviation Administration Airworthiness Directive 2018-13-02 is a final rule addressing Pratt & Whitney Division turbofan engines models PW4052, PW4056, PW4060, PW4062, PW4062A, PW4152, PW4156A, PW4158, PW4460, and PW4462, including suffixes -1C, -1E, -3, -3A, and -3B. It mandates the removal from service of certain 4th stage low-pressure turbine (LPT) air seals, specifically part number 50N346, due to the discovery of multiple cracks. The directive aims to prevent engine damage and potential airplane hazards caused by air seal failure.

Airworthiness Directive
  • Pratt & Whitney PW4000