Do you guys make this sh1t up as you go along?
No, you don't read what is written RVDT.
In order to recover the transfer pumps in the main tanks with fuel (which will after a while cancel the F pump caption even with the transfer pump switched off), TC said they used a nod -ie nose down - which moves fuel from the supply tanks (the ones which feed the engines) to the main tanks through the overflow pipes.
Without the transfer pumps running, it would need enough nose up for the fuel to flow back from the main tanks, through the overflow pipes to the supply tanks in order to keep the level in the supply tanks high enough.
It is possible - as the report shows, for more fuel to be shunted forward than expected and for the 4 kg difference between 1 and 2 supply tanks (to prevent both engines flaming out together) to be eroded if the aircraft is manouevered at low speed out of balance.