[diamondave5]

you know no one ever told me not to mount a reciever under the canopy, alot of arfs have a perfect little tray next to the rudder servo just for that, i see it in pictures in instruction manuals mounted there, so its a common place to put them, given that i flew all last summer in tucson with my pcm in the exact same spot and had no issues, then at the end of april had a 2.4 fail in same location mounted same way, id say there is something going on, it was only mid to upper 80's the day mine failed, that is by no means extreme in my opinion