Superseded. This AD was superseded by AD 2025-20-10. Verify which one applies to your serial and effectivity before any maintenance action.
AD 2021-26-07
Effective 01/27/2022 · Published 12/23/2021
Airworthiness Directives; Airbus Helicopters
Summary
The FAA is superseding Airworthiness Directive (AD) 2020-11- 05, which applied to all Airbus Helicopters Model EC120B helicopters. AD 2020-11-05 required repetitive inspections of the tail rotor (TR) hub body for cracks and applicable corrective actions if necessary, and repetitive replacement of the attachment bolts, washers, and nuts of the TR hub body. This AD was prompted by a report of recurrent loss of tighten…