Gentleman be aware when refueling in ALA. There is one fueler usually driving the same modified fueltruck. Part of the fuel is siphoned back into the truck. This regularly leads to a difference of around 500kg during each refueling.
Someday one of our engineers found out and informed all station personell involved around our aircraft. Since then, this special fueler and truck is not allowed to refuel our aircraft.
Any way to identify that truck at ALA in advance?