We have had a series of flap servo failures on several turbine powered jets at our airfield of late. The latest victim was an Avanti that experienced 2 fried Hitec 7954 flap servos in flight causing catastophic failure. I experienced a similar failure in my Ultima-tun 2 meter turbine powered jet. While I did not lose my plane I do not want to fly again until I understand why these high voltage digital servos are failing. None have been observed to be binding or otherwise hitting the end of their control throws. No shorts in any wiring have been discovered either.
Tomorrow I am sending several of these off to Hitec to take a look at. In the meantime I wonder if anyone has had a similar experience?

Steve