And by burn up i mean it started on fire and melted the plastic case. Smoke was billowing out from the servo. I disconnected the wiring and blew out the fire. It took probably 20 minutes for it to cool enough to take it out. Luckily the radio tray didn't catch fire, that would have been a catastrophe.
Also the servo was claimed to be waterproof. I think one of the o-rings must have been bad or not put on right at the factory. Certainly can happen.