Airbus helicopters get a permanent fix for a throttle problem that could leave engines idling

US aviation regulators are proposing a new rule for certain Airbus helicopters to fix a throttle issue. This rule would require a permanent modification to the throttle twist grip, ending the need for repeated inspections.

A small number of Airbus helicopters have had a problem where the engine stays in idle, even when the pilot tries to increase power. This new rule means operators will have to install a specific hardware fix, which should prevent the issue from happening again. It also means regulators are expanding the types of helicopters affected and banning the installation of faulty parts.