Originally Posted by
RVDT
I think you may have recovered the aircraft OK but when you get time back at base you should dig a bit further.
I would be checking the condition of your earth points in the area of the tailboom. Notorious spot for corrosion and often not obvious.
Sounds like you may have had a weak ground for the relay and it not pulling in hard enough due low voltage - hence the noise in the headset of the contacts doing a bit of casual "welding" with the net result it welded closed?
Yes we did recover it. It was the Start Relay.
Thanks to all those that posted advice and suggestions here. Much appreciated.