EASA AD 2018-0156
SUPERSEDED BY EASA AD 2020-0206
EASA Airworthiness Directive 2018-0156 is an airworthiness directive issued by the European Aviation Safety Agency concerning Leonardo S.p.A. A119 and AW119MKII helicopters. It addresses corrosion issues found on the 90° tail rotor gearbox output shaft, specifically parts with part numbers 109-0440-06-101 and 109-0440-06-105. The directive mandates inspections and possible replacement of affected tail rotor gearboxes to ensure continued airworthiness.