AD Issued for MD Helicopters 369 and 500 Torque Tube and Roller Bearings

The FAA has issued a new Airworthiness Directive (AD) for certain MD Helicopters Model 369 and 500N helicopters. This AD was prompted by a report of a seized and damaged roller bearing in the pilot interconnecting cyclic torque tube assembly. This AD requires repetitively inspecting the torque tube assembly for freedom-of-movement, corrosion and cracks as well as the roller bearings for corrosion and degradation. Depending on the results, this AD requires replacing parts or accomplishing additional inspections. 

AD 2024-23-06 is effective December 24, 2024.