B737 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Flight Crew Type 1207
Deviation / Discrepancy - Procedural Weight And Balance; Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Became Reoriented
Company Policy; Procedure
After a successful departure we just leveled off at our final cruise altitude and received an ACARS message with a new Final Weight Manifest that was 1;103lbs over the weights used for takeoff. We adjusted [our] aircraft ZFW and continued to [destination].
Final weights listed a ZFW (Zero Fuel Weight) of 138.618 and a TOG of 166.418. Takeoff data was planned for an ATOG of 167.1. At level off; we received a new final weights with the ZFW of 139.721 which resulted in a TOG of 167.521 which was over the final ATOG of 167.1. This resulted in an illegal takeoff performance value. We adjusted the new ZFW so that approach speeds were correct.
Air carrier flight crew reported receiving adjusted 'final weights' in cruise flight.