Superseded. This AD was superseded by AD 2022-19-12. Verify which one applies to your serial and effectivity before any maintenance action.
AD 2021-19-08
Effective 09/22/2021 · Published 09/07/2021
Airworthiness Directives; Robinson Helicopter Company Helicopters
Summary
The FAA is adopting a new airworthiness directive (AD) for certain Robinson Helicopter Company Model R44 and R44 II helicopters. This AD was prompted by reports of cracked tail rotor blades (blades). This AD requires checking each blade for any crack and removing any cracked blade from service. This AD also requires removing all affected blades from service and prohibits installing any affected blade on any helicopt…