Just a point to note:
"Maybe his supply tanks were indicating FULL, caused by a minute amount of water the capacitance sensors which subsequent to recovery of the helicopter post accident, had dried away."
The amount of water needed to 'short out' the Capacitors was just a small droplet floating around in the fuel that could be pulled into the centre by a swirl in the fuel. However, Capacitors did not need to be dried to regain their function, although generally, this was how they were stored when found U/S. Tests showed that an equally small bump would shift the droplets from contacting both surfaces.