Sikorsky Aircraft Corporation and Other Helicopter Manufacturers Propose New Airworthiness Directive for Model Helicopters

Summary

The proposed airworthiness directive would require the creation of component history records and the tracking of hours and lift cycles for main gearbox input left and right freewheel unit assemblies on specified Sikorsky, Croman, Carson, and Siller model helicopters, with the goal of reducing the risk of repetitive external lift operations and ensuring airworthiness.