What are the standard procedures for engine start-up and shutdown in aircraft?
The standard procedures for engine start-up and shutdown in aircraft are as follows ¹ ² ³ ⁴:
*Pre-Start:*
- Ensure that all protective covers and air inlet duct covers are removed.
- Check for any obstacles in the engine air inlet and exhaust hazard areas.
- Check the aircraft fuel sumps for water or ice.
- Inspect the engine air inlet for general condition and the presence of foreign objects.
- Visually inspect the fan blades, forward compressor blades, and the compressor inlet guide vanes for nicks and other damage.
*Start-Up:*
- Turn the aircraft boost pumps on.
- Make sure that the power lever is in the “start” position.
- Place the start switch in the “start” position. This starts the engine turning.
- Place the ignition switch on. (On some engines, the ignition is activated by moving the fuel lever.)
- The fuel is now turned on. This is accomplished by moving the condition lever to the “on” position.
- Monitor the engine lights of the exhaust temperature. If it exceeds the limits, shut the engine down.
- Check the oil pressure and temperature.
- After the engine reaches a self-sustaining speed, the starter is disengaged.
- The engine continues to accelerate up to idle.
- Maintain the power lever at the “start” position until the specified minimum oil temperature is reached.
- Disconnect the ground power supply, if used.
*Shutdown:*
- Reduce power to idle.
- Move the condition lever to the “off” position.
- Turn off the ignition switch.
- Turn off the start switch.
- Allow the engine to cool down.
- Turn off the boost pumps.
*Post-Shutdown:*
- Inspect the engine and its components for any damage or malfunctions.
- Check the fuel and oil levels.
- Record any issues or concerns in the aircraft logbook.
- Perform any necessary maintenance or repairs before the next flight.
