FAA 2023-03-03

Requires repetitively inspecting certain tail rotor duplex bearings (TRDB) and, depending on the results, replacing the TRDB or tail rotor actuator, or, as an option, replacing the sliding control assembly. Also requires replacing an affected TRDB with a serviceable TRDB at a specified threshold and prohibits the installation of certain TRDBs or sliding control assemblies on any helicopter. Prompted by a report of a damaged tail rotor duplex bearing.