after watching my new park flyer jet suddenly take a down elevator and crash ( i had no control of elevator) plane was only 100 feet away heres what i found after trying to duplicate problem for a couple of hours (radio and gear on for a while then off then on it finally happened heres what it did tapping on 6100 then watching elevator went to max down one second then back to neutral 10 seconds later without tapping rudder went full right and stayed there i moved rudder stick onTX NOTHNG all other controls working tapped on connector on RX rudder to neutral then a couple of seconds later the orange light went off about one second then back on has not done it again tonight