Large Transport
Dispatch Dispatcher
Aircraft Equipment Problem Critical; Inflight Event / Encounter Fuel Issue
General Maintenance Action
Aircraft
Released flight payload 44.0; fuel 31.3  with [an] alternate.Ramp agent called and advised acft 62.1 Fuel on Board (FOB); questioned estimated payload was told could be as high as 60.0; ran numbers 59.0 Landing Gross Weight (LGW) 267237 vs Maximum Gross Weight (MLGW) 267.957.0 lgw  26535255.0 lgw  263470told ramp agent wasn't comfortable with anymore than 55.0.  Released flt capped 55.0/FOB 62.1Was advised aircraft landed with 2;500 lbs fuel on board.
The flight release showed 62;100 pounds of fuel supposedly already on the aircraft and fuel over destination was 43;307 pounds. This is considerably more fuel than we would ever normally carry leading us to believe fuel was not going to be an issue for us.Upon arrival at the airplane the fuel ticket showed 62.1 before fueling and 62.1 after fueling and no entry in the total metered fuel box. Indicated fuel quantity was 62.1 and fuel distribution agreed.Climbing through flight level 180 the fuel synoptic appeared normal. Enroute fuel flow fuel used and the prog/fuel predict all correlated with flight plan with FOD of 43;000.In preparation for landing the weight on the Take Off page calculated a Vapp of 138. Once the aircraft was fully configured the airspeed hook on both PFD;s showed that 138 was in excess of the required speed. All airspeed and pitch indications on both pilots' displays confirmed the hook. I then independently verified the AOA using the Flight Path Vector and the aircraft pitch compared with the ILS. This independent verification also confirmed the hook. A normal landing followed. We both confirmed that the fuel system was in error showing 61;400 pounds at landing. Maintenance was notified and a discrepancy was entered in the Aircraft Maintenance Log AML.The following night I queried maintenance about this aircraft to find out what happened. He told me they had stacked the tanks and that we landed with a total of 2;600 pounds not the 43;000 pounds on the flight plan. We of course had no real indication of this including the lack of any low fuel warning. Massive Fuel system malfunction.
Large Transport aircraft First Officer reports landing with 43;000 pounds of fuel on board; but with the aircraft handling as if it was much lighter. The fuel system was written up and Maintenance discovered that the fuel tanks contained only 2;500 pounds of fuel.