Well yes. You're talking about false readings in them when they were empty.
MG, I'm talking about the indications over-reading by more than double the true amount (lbs not kgs) and when this was realised it was far too late to do very much about it.
A very very wild stab, but what's to say that when this was indeed realised, (21/19) an attempt was made to land in the road at the junction, but unfortunately the fuel quantity just wasn't enough to allow this to happen?
You're without doubt absolutely correct that 'nothing so far explains why the supply tanks were empty and the transfer pumps were switched off', which is why some of us wish to discuss the possibilities no matter how 'extreme or unlikely' they may appear.