Narrative:

Upon landing in smf; the ground agents informed us that approximately 1000 pounds of ballast was found in the fwd pit which was not listed on the manifest. Unknown to us or them if it was included in the weight and balance. Aircraft was late due to an engine change in ZZZ. Just a guess; but this may have caused the ground crew to be rushed and forget to report the weight.

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Original NASA ASRS Text

Title: MD80 FLT CREW UPON LNDG AT SMF DISCOVERS 1000 LBS OF BALLAST IN THE FWD CARGO COMPARTMENT.

Narrative: UPON LNDG IN SMF; THE GND AGENTS INFORMED US THAT APPROX 1000 LBS OF BALLAST WAS FOUND IN THE FWD PIT WHICH WAS NOT LISTED ON THE MANIFEST. UNKNOWN TO US OR THEM IF IT WAS INCLUDED IN THE WT AND BAL. ACFT WAS LATE DUE TO AN ENG CHANGE IN ZZZ. JUST A GUESS; BUT THIS MAY HAVE CAUSED THE GND CREW TO BE RUSHED AND FORGET TO REPORT THE WT.

Data retrieved from NASA's ASRS site as of January 2009 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.