EASA AD 2019-0139
SUPERSEDED BY EASA AD 2021-0046
EASA Airworthiness Directive 2019-0139 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting all Airbus Helicopters EC 120 B helicopters. It addresses the inspection and replacement requirements for main rotor hub scissors attachment bolts, specifically part number C623A21101, to prevent potential failure due to corrosion and mechanical stress. The directive mandates inspections, markings, and corrective actions to ensure continued safe operation of the affected helicopters.