Business · 30/11/1994Updated: 10/18/2026 · 1 min read

FAA Proposes Changes to Airworthiness Directive for Schweizer Aircraft Corporation and Hughes Helicopters, Inc. Helicopters

The Federal Aviation Administration (FAA) is proposing to modify an existing airworthiness directive (AD) for certain Schweizer Aircraft Corporation and Hughes Helicopters, Inc. Model 269A, 269A-1, 269B, 269C, and TH-55A series helicopters, which would require inspections of main rotor drive shafts to prevent structural failure and separation of the rotor from the helicopter.