FAA Powerplant Written Practice Test

What is the first action to take if a turbine engine catches fire during start-up?

1. Call emergency services

2. Turn off the fuel and continue engine rotation with the starter

3. Use a fire extinguisher immediately

4. Evacuate the area

The correct answer is: Turn off the fuel and continue engine rotation with the starter

In the event of a turbine engine catching fire during start-up, turning off the fuel and continuing engine rotation with the starter is crucial for several reasons. First, shutting off the fuel supply helps to eliminate the main source of the fire, as fuel is essential for combustion. By interrupting the fuel flow, the fire cannot sustain itself and will begin to diminish as it is deprived of additional fuel. Continuing engine rotation with the starter plays a significant role as well. When the engine is rotated, it can help to clear unburned fuel that may be present in the combustion chamber, thereby reducing the intensity of the fire. In some situations, the airflow generated by engine rotation can also help to cool components, further assisting in fire suppression. In real-world scenarios, immediate actions like using a fire extinguisher or evacuating the area have their place, but addressing the fuel source and engine operation directly can be more critical to managing the situation effectively and safely. Thus, turning off the fuel while continuing engine rotation is the recommended first action.