Airworthiness Directives; Airbus Helicopters

The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Model SA330J helicopters. This AD was prompted by a report that the measured resistance value of the pyrotechnic cartridge of the engine fire extinguisher was out of tolerance. This AD requires repetitively inspecting the pyrotechnical cartridge and, depending on the results of the inspection, accomplishing corrective actions. This AD also prohibits an affected pyrotechnical cartridge from being installed on any helicopter unless certain requirements are met. The FAA is issuing this AD to address the unsafe condition on these products.