On my last flight I crashed and hit the ground pretty hard....the tail motor kept spinning at full throttle while it lied on the ground with no throttle input from my remote control..I disconnected the helis battery and reconnected it again and at this point the light would never turn back on and the tail motor wouldn't respond...can anybody tell me what the problem may be? Is the tail motor dead? Is the board malfunctuioning and what can I do to fix it? Thank you guys very much for your help!