If you had your TX in AC BEFORE you went flying there is a good chance some condensation built on the electrinics in the TX and shorted it out. Sailplane guys noticed that when the TX was in the trunk out of AC on the drive to the field they had no problems, but when it was in the passenger compartment with the AC on they had $2,000 moldies do the same as yours. after a little head scratching they pulled the back off the TX and found condensation.

Think about what happens to a nice cold can of Coke, on a hot, and humid day.

Bummer you lost your plane- that really sucks.

Cody