Turbine Block 13 Practice Exam

When a turbine engine catches fire, the first priority is to stop feeding the fire. Turning off the fuel supply halts new fuel from reaching the combustor, which is the quickest way to suppress the flame. After cutting fuel, continuing to rotate the engine with the starter (motoring) helps purge any remaining fuel vapor and hot gases from the engine and provides cooling air, reducing the risk of reignition and aiding a controlled shutdown. Shutting down electrical systems first or feathering the engine doesn’t address the fire as directly or promptly, and stopping the engine immediately without purging can leave hot areas and fuel residues that could reignite.