Narrative:

Approximately 2 hours after departure; we received a ZFW (zero fuel weight) correction over ACARS. Our ZFW was actually 1000 pounds higher than reported prior to departure. Apparently; cargo was added just prior to pushback but did not get reported to lp. Our take-off data and performance calculations were based on the wrong ZFW.

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Original NASA ASRS Text

Title: B737 flight crew reported receiving a second set of 'final' weights enroute.

Narrative: Approximately 2 hours after departure; we received a ZFW (Zero Fuel Weight) correction over ACARS. Our ZFW was actually 1000 pounds higher than reported prior to departure. Apparently; cargo was added just prior to pushback but did not get reported to LP. Our take-off data and performance calculations were based on the wrong ZFW.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.