fungal fuel contamination which can give erratic fuel indications
It can????
The easy view in hindsight is to blame the crew
Who on earth else is involved? Crew ordered the fuel. Crew were happy with it even when questioned. Crew did not divert. Gauges??? This wasn't a minor 100Kg infraction of min flight fuel for God's sake!
I know there is a stubborn resistance here to accepting that pilots can screw up monstrously even when it's plain as daylight but surely this is so clear-cut no one can imagine any outside help was needed in this case?