Helicopter cracks mean mandatory inspections for one model, not just recommendations

US aviation regulators are proposing mandatory inspections for a specific helicopter model, the Leonardo AW189, due to reports of cracking. This means operators of these helicopters will have to repeatedly check ejector ducts and replace any that show damage.

Aviation safety rules often start with recommendations or voluntary checks. This proposed rule makes inspections mandatory for a specific part on a specific helicopter model. This shifts the burden from voluntary compliance to a legally enforceable requirement, meaning operators cannot ignore the problem.