EASA AD US-2022-21-11
Main Rotor - Blades - Inspection / Removal from Service
The Federal Aviation Administration Airworthiness Directive 2022-21-11 is a final rule addressing certain Bell Textron Inc. Model 204B, 205A, and 205A-1 helicopters, as well as various restricted category helicopters equipped with specific main rotor blade part numbers. This directive mandates repetitive inspections of main rotor blades to detect cracks and requires removal from service of any cracked blades to ensure continued airworthiness.