Superseded. This AD was superseded by AD 2021-26-07. Verify which one applies to your serial and effectivity before any maintenance action.
AD 2020-11-05
Effective 06/08/2020 · Published 05/22/2020
Airworthiness Directives; Airbus Helicopters
Summary
The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Model EC120B helicopters. This AD was prompted by a report of recurrent loss of tightening torque on several attachment bolts of the tail rotor hub body. This AD requires repetitive inspections of the tail rotor hub body for cracks and applicable corrective actions if necessary, and repetitive replacement of the attachment bolts, washe…