Business · 13/09/2010Updated: 10/17/2026 · 1 min read

FAA Adopts New Airworthiness Directive for Pratt & Whitney PW4000 Series Engines

Summary

The Federal Aviation Administration (FAA) has issued a new airworthiness directive (AD) requiring initial and repetitive fluorescent penetrant inspections for cracks in the high-pressure compressor drum rotor disk assembly of certain Pratt & Whitney PW4000 series turbofan engines, following reports of cracked locking and loading slots.

Original source language: Federal Register — Transportation DepartmentOpen original release →

Add your company to Business Communicator

We monitor business sources and connect attention with companies, profiles and services available in Business Communicator.

Create a free company profile Explore businesses on Business Maps →

Create a free company profile →

Explore insights

Business insights →

Global Markets News Trade Regulation News Business Technology News Supply Chain News Central Bank Policy News

Related business signals

Business · 9/11/2026

Rolls-Royce Deutschland Ltd & Co KG Engines: FAA Issues Superseding Airworthiness Directive

The Federal Aviation Administration (FAA) has superseded Airworthiness Directive (AD) 2020-06-16 for certain Rolls-Royce Deutschland Ltd & Co KG (RRD) Model RB211 Trent 768-60, 772-60, and 772B-60 engines, requiring initial and repetitive ultrasonic inspections of the affected low-pressure compressor blades to address an unsafe condition.

Read summary →

Business · 9/15/2026

FAA Adopts New Airworthiness Directive for Pilatus PC-24 Airplanes

The Federal Aviation Administration (FAA) has issued a new airworthiness directive (AD) for Pilatus Aircraft Ltd.'s Model PC-24 airplanes, requiring modification and replacement of a faulty solid-state relay in the left-hand windshield heating system to address an unsafe condition.

Read summary →

Business · 9/14/2026

FAA Proposes New Airworthiness Directive for CFM International Engines

The Federal Aviation Administration (FAA) has proposed a new airworthiness directive (AD) to address a safety issue with certain CFM International, S.A. (CFM) Model CFM56-5B, CFM56-5C, and CFM56-7B engines, which have experienced honeycomb separation from the surface of high-pressure turbine (HPT) inner stationary seals, prompting multiple reports and prompting the FAA to issue this proposed AD to ensure the safe operation of these aircraft engines.

Read summary →

Business · 9/14/2026

FAA Proposes New Airworthiness Directive for Airbus A330 and A340 Aircraft

The Federal Aviation Administration (FAA) is proposing a new airworthiness directive (AD) to address an unsafe condition on certain Airbus A330 and A340 aircraft, requiring modifications to the trimmable horizontal stabilizer actuator installation and the installation of an electrical load sensing device (ELSD).

Read summary →

Business · 9/11/2026

FAA Proposes New Airworthiness Directive for Airbus A300-600 Series Airplanes

The Federal Aviation Administration (FAA) has proposed a new airworthiness directive for Airbus A300-600 series airplanes, which would require revising maintenance or inspection programs to address an unsafe condition on these products.

Read summary →

Business · 9/11/2026

FAA Issues Revised Airworthiness Directive for Gulfstream Aerospace LP Model G150 Airplanes

The Federal Aviation Administration (FAA) has superseded Airworthiness Directive (AD) 2025-15-04, requiring Gulfstream Aerospace LP Model G150 airplane owners to revise their maintenance or inspection programs to incorporate new or more restrictive airworthiness limitations, in response to an unsafe condition.

Read summary →