Airbus helicopters must fix faulty airspeed and altitude readings

US aviation regulators are proposing a new rule for specific Airbus helicopter models. These helicopters have been reporting incorrect airspeed and altitude readings, which can be dangerous.

Helicopter pilots rely on accurate instrument readings to fly safely, especially in bad weather or at night. This proposed rule means that operators of these Airbus models will have to replace a part in the air conditioning system that is causing the errors. It also means they cannot install the faulty part again.