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Fastbreak

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  1. Fastbreak's post in Flying with one engine was marked as the answer   
    In-flight Single Engine Failure
    If one engine fails or there is an automatic engine shut down due to the free-turbine (FT) protection function of the electronic engine governor EEG in case of a FT over-speed, be aware of the following:
    Single engine failure indication:
    - Rotor RPM decreases and the «zebra» light (rotor speed less than 85%) illuminates
    - Noise of an engine shutting down
    - Uncontrollable descent of the helicopter
    - Ngg and EGT decrease for that failed engine
    - Engine inlet oil pressure drop (by the oil pressure gauge)
    - Ngg increase in still operating engine

    Actions to take:
    1. Decrease collective pitch to avoid rotor RPM less than 85%.
    2. Check the instruments to identify which engine has failed and close its cut-off and shut-off valves.
    3. Set airspeed to 110 to 120 km/h and move the throttle control lever of the still operating engine up to FULL mode position to regain the rotor RPM.
    4. Make sure there’s no fire aboard the helicopter.
    5. Open the fuel cross-feed valve.
    6. Make sure the remaining engine is operating normally and that the helicopter is able to maintain horizontal flight and maintain altitude.
    7. Decide whether to do an emergency landing or to continue the flight.
    Manual 10 -47
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