Airbus helicopters must check for a missing ring in emergency flotation systems

The US aviation regulator proposes a new rule for specific Airbus helicopter models. Operators must inspect emergency flotation systems for a missing retaining ring and fix it if needed.

A small, missing part in an emergency system can lead to a big problem. This rule means operators must actively look for a specific defect that could prevent a helicopter's flotation system from working. It shifts the burden from assuming parts are correctly installed to actively verifying their presence.