Helicopter repair shops must check a specific lockwire on Bell 429 models

The US aviation regulator proposes a new rule for certain Bell 429 helicopters. It requires inspecting a specific lockwire on the stability and control system and fixing it if installed incorrectly.

This is a small, specific fix for a known safety issue. It means that helicopter operators and maintenance crews will have to add a new inspection step to their routine. The goal is to prevent a part from failing that helps keep the helicopter stable in flight.