Airbus helicopters need a check for missing window parts before they can fly

US aviation regulators want to make sure certain Airbus helicopters have all their window parts. This means operators will have to inspect the jettisonable window systems and replace any missing retaining rings.

This is a small, specific safety fix for a particular helicopter model. It means that a known manufacturing oversight will be corrected across all affected aircraft. The goal is to prevent windows from detaching during flight.