I had a similar problem with my Typhoon. The motor would run fine at low to mid throttle. At full throttle, it would run, high pitch sound and then quit. If I flew the plane at no more than 1/2 throttle, then I had no problems with it. This was my second motor -- no need to talk about what happened to the first motor....! There was something wrong with the motor and everything went back to normal once I replaced it. The third motor has been running without any problems for over six months.

You may want to call Parkzone customer service with your comments for their ideas/suggestions. They are very good at trying to keep customers happy. However, having crashed the Typhoon, they could just assume the problem is due to the crash.

Hope above was of some help.