Narrative:

On takeoff at rotation speed; aircraft needed an additional 1-2 full units of trim to rotate. Once above 10000 ft; we called dispatch and advised them that we believed our weight and balance data was suspect and that we would like a load audit performed upon arrival. We have since found from the load audit that the data on 4 of our 6 cargo pits were grossly wrong and that we had additional weight on board that was not reported to us with our load closeout from operations.supplemental information from acn 692750: dispatch initiated the inquiry and later in the flight responded saying it appeared a wrong cargo pallet was loaded. New numbers were forwarded to us and landing was uneventful. Initial audit numbers showed bag count incorrect by approximately 40 bags. Additionally; cargo may have been off by 1800 pounds.

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Original NASA ASRS Text

Title: B737-400 FLT CREW EXPERIENCES EXTREME NOSE HVY CONDITION ON TKOF. REQUEST LOAD AUDIT AND DISCOVER 'GROSS' ERROR IN WTS OF CARGO CONTAINERS PLUS 'ADDITIONAL UNREPORTED WT.'

Narrative: ON TKOF AT ROTATION SPD; ACFT NEEDED AN ADDITIONAL 1-2 FULL UNITS OF TRIM TO ROTATE. ONCE ABOVE 10000 FT; WE CALLED DISPATCH AND ADVISED THEM THAT WE BELIEVED OUR WT AND BALANCE DATA WAS SUSPECT AND THAT WE WOULD LIKE A LOAD AUDIT PERFORMED UPON ARR. WE HAVE SINCE FOUND FROM THE LOAD AUDIT THAT THE DATA ON 4 OF OUR 6 CARGO PITS WERE GROSSLY WRONG AND THAT WE HAD ADDITIONAL WT ON BOARD THAT WAS NOT REPORTED TO US WITH OUR LOAD CLOSEOUT FROM OPERATIONS.SUPPLEMENTAL INFO FROM ACN 692750: DISPATCH INITIATED THE INQUIRY AND LATER IN THE FLT RESPONDED SAYING IT APPEARED A WRONG CARGO PALLET WAS LOADED. NEW NUMBERS WERE FORWARDED TO US AND LNDG WAS UNEVENTFUL. INITIAL AUDIT NUMBERS SHOWED BAG COUNT INCORRECT BY APPROX 40 BAGS. ADDITIONALLY; CARGO MAY HAVE BEEN OFF BY 1800 LBS.

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.