EASA 2023-0036

Supersedes but partially retains the requirements of EASA AD 2021-0046, which mandates adding red line markings on the main rotor hub scissor nut, washer, scissor branch, and mast ring, and also to control the integrity of the pin to make sure that it is not sheared. Updated AD introduces an optional modification—replacing scissors links with carbide bushes with improved scissors links with AMPEP bushes—that constitutes a termination action for this AD.