I just finished putting my trex500 together from a crash. I changed all the servos, main shaft, feathering shaft , blades, tail boom, torque tube, ant tail assembly. It flys great but hovering for a minute or to, the power cuts out and the heli falls to the ground. Put the throttle stick back down, and then back up, it spools up but power cuts out again. Battery gets kind of hot. Any suggestions would be appreciated thank you.