✅️ Airbus 340 engine fire test ✈️ . An Airbus A340 engine fire test is not a routine procedure conducted by flight crews; rather, it refers to the system testing of the engine fire detection and protection systems, which involves the crew following specific checklists and using quick reference guides to manage such emergencies, not "testing" the fire itself. . These systems, including detection loops and extinguishing agents, are designed to alert crews to a fire and allow them to extinguish it,