I do agree there is merit in some of the conclusions the last few posts are drawing. Cladosporium resini (Fuel/water interface pink snot) could cause mis-sensing of the fuel probes, meaning a shortened time to alert the pilot if at all, that, along with this as yet un-declared display fault, gives room for things not appearing as they normally would be expected to in the cockpit. And this might also explain why there is no (released) evidence of anything untoward expressed to both ATC and the Police control room. Does not yet explain why the transfer pumps were selected to 'OFF' and the 'PRIME' pumps were selected on.