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Step 6. Engine Stop
1. Before engine shutdown, operate the engine between 1000 and 1200 rpm for at least 5
minutes to allow turbocharger cool down.
2. When operating temperatures are stable and the EGT drops below 1100°F (593°C), increase
engine speed to 1800 rpm for 15 to 20 seconds. Then decrease engine speed to between 1000
and 1200 rpm before engine shutdown
3. After the temperatures are stable, set the Ignition switch to the OFF position to stop the
engine.
4. When the propeller stops rotating, turn the Fuel Selector to the OFF position.
WARNING DO NOT TURN THE PROPELLER ON A HOT ENGINE EVEN THOUGH
NOTICE: An independent fuel shut-off valve is supplied by the airframe manufacturer in
compliance with engine shut-down integrity requirements.
5. During engine shutdowns, the EECS:
• Stops fuel injection with the next scheduled fuel event
• Schedules ignition events for a calibrated period of time or until the propeller has stopped
rotating, whichever occurs first.
6. When the engine stops, turn off the airframe power.
7. Refer to the airframe manufacturer's POH for additional information.
Engine Operation
Page 68
TEO-540-A1A Engine Installation and Operation Manual
THE IGNITION SWITCH IS IN THE OFF POSITION. THE ENGINE
COULD KICK BACK AS A RESULT OF AUTO-IGNITION CAUSED BY
A SMALL AMOUNT OF FUEL REMAINING IN THE CYLINDERS.
AUTO-IGNITION COULD RESTART THE ENGINE AND CAUSE
SERIOUS BODILY INJURY OR DEATH.
© 2018 Avco Corporation. All Rights Reserved
October 2018
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