i was flying my avisar and took off flew half a pattern, but i lost i controal with the plane and it crashed. the antena wasn't near a servo or anything metalic. it was in range, i have a narow-band raido, the batt and all servos were pluged into the recever, i had a full bat, and tx charge, the reciver and bat were mounted in foam, and i just can't figure out what happend. i tested all the radio equipment later in my workshop and it worked fine. any ideas?