Old helicopters must now get regular inspections for a specific part that can seize

The US aviation regulator now requires owners of certain MD Helicopters models to regularly inspect a specific part: the pilot interconnecting cyclic torque tube assembly. If the inspection finds problems, owners must replace parts or do more inspections. This rule aims to prevent a specific roller bearing from seizing and damaging the assembly.

This is a small, specific safety mandate for a particular helicopter model. It means that operators of these helicopters will face increased maintenance costs and downtime for inspections. The rule is a direct response to a documented failure, ensuring that a known risk is actively managed rather than waiting for more incidents.