FAA Proposes AD on Learjet 60 Fire Extinguishers

The FAA has issued an NPRM for an Airworthiness Directive targeting the Learjet 60 fire extinguishing system. It is prompted by two incidents of swapped fire-extinguishing wires and would require inspecting the electrical leads routed to the fire-extinguishing containers for proper identification and missing labels; to ensure the electrical leads are connected to the correct squibs; and corrective actions if necessary. The action would prevent the extinguishing agent of the fire-extinguishing container from being delivered to the wrong engine. The FAA is accepting comments until January 17.