Airbus helicopters must replace certain bolts after reports of deformation

The US aviation regulator is ordering certain Airbus helicopters to replace specific attachment bolts on their main gearbox suspension bars. This means operators must inspect the removed bolts and report the findings to Airbus Helicopters.

This is a mandatory safety fix for a specific part on a specific helicopter model. It means operators of these helicopters must spend money and time to replace parts and report data. The reports will give Airbus Helicopters more information about how these bolts are failing in the field.