FAA 2023-13-14

Supersedes  AD 2023–01–12, which required replacing affected fire detectors and prohibited installation of affected fire detectors. Since the FAA issued AD 2023–01–12, the agency has determined that Model Arriel 1K1 engines are also affected by the unsafe condition. This AD is prompted by reports of false engine fire warnings. This AD requires replacing the affected fire detectors, prohibits installation of affected fire detectors, and adds Model Arriel 1K1 engines to the applicability, as specified in an European Union Aviation Safety Agency AD.