EASA 2020-0212

Supersedes but retains the requirements of EASA AD 2014-0179R2 and AD2019-0046, which mandates an inspection to check the tightening torque of the Shur-Lok nut, which serves as a retainer of the tail rotor drive flange of the main gearbox. Updated AD requires installation of a rear output stop with four or five spigots, depending on the front shaft configuration, on the tail rotor shaft flexible coupling for helicopters that were not affected by EASA AD 2019-0046.