B737 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Flight Crew Type 13376
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Weight And Balance
Flight Crew Became Reoriented; Flight Crew Overcame Equipment Problem
Aircraft
We noticed a discrepancy in the uploaded ZFW (Zero Fuel Weight). There was a 2200 lb difference from the final weights. After a conversation with dispatch and load plan it was determined that the ZFW on the final weight sheet was correct and even though the load planner was entering the correct ZFW to be sent to the aircraft; the number that appeared was the original flight plan ZFW which was incorrect. We manually entered the correct ZFW and it was accepted by the FMS but we did not understand why the FMS would not upload the correct ZFW sent by the load planner several times. Perhaps another coding issue for Saber.
B737 Captain reported the FMS would not upload the correct Zero Fuel Weight. It had to be entered manually.