Sudden complete motor failure
in 912 / 914 Technical Questions
7 years ago
I am the owner of an Autogyro, with a 912ULS Rotax with backup electric fuel pump. The plane is 5 years old and has just had its 5 years maintenance.
Lately I’ve experienced two identical incidents. I stood waiting to line up for the runway, made my radio call and during (or just after the call) I increased throttle to drive up the runway.
The moment I increased throttle the motor when off completely. No rough running, I was just like the ignition switches were switched off, the motor stopt running immediately.
I think I recall that with the motor shutting down, also my radio went dead, but I am not 100% sure of that.
After about a minute I switched the contact key off and on again and could restart the engine. I went takeoff and everything was back to normal. However, some days later the same thing happend again: waiting for 10 minutes or so to line up for the runway, during or just after the radio call I gave throttle to start driving, and within a second the motor completely shut down.
The electric backup fuel pump was on both times. The temperature the first time was 29C/85F, the second time 23C/74F. The maintenance company says they’ve checked everything, fuel flow, wiring, etc, but can’t find the solution. Does anybody know what this could be?
Lately I’ve experienced two identical incidents. I stood waiting to line up for the runway, made my radio call and during (or just after the call) I increased throttle to drive up the runway.
The moment I increased throttle the motor when off completely. No rough running, I was just like the ignition switches were switched off, the motor stopt running immediately.
I think I recall that with the motor shutting down, also my radio went dead, but I am not 100% sure of that.
After about a minute I switched the contact key off and on again and could restart the engine. I went takeoff and everything was back to normal. However, some days later the same thing happend again: waiting for 10 minutes or so to line up for the runway, during or just after the radio call I gave throttle to start driving, and within a second the motor completely shut down.
The electric backup fuel pump was on both times. The temperature the first time was 29C/85F, the second time 23C/74F. The maintenance company says they’ve checked everything, fuel flow, wiring, etc, but can’t find the solution. Does anybody know what this could be?
