Hello,

That message indicates that the turbine was shut down via RC command, just like the throttle pulse (combination of the throttle stick and the throttle trim) was pulled to the "off" position. This could also be cause by the Aux channel going to the "off" state.

Another way this can happen is by having a failsafe with the failsafe being incorrectly programmed int he ECU. Make sure that you are getting a valid failsafe indication on the GSU when you turn off your transmitter during ground test.

Hope that helps,