Narrative:

Over-gross takeoff, actual weight 131746 pounds. Company ACARS computed maximum takeoff weight 132700 pounds with engine bleeds off. Wind was 190 degrees at 6 KTS and we used runway 19 when computation was for runway 10 (3000 ft longer). We figured later that we were about 2000 pounds over-grossed for the runway we used. Contributing to the problem was the confusing way the company chose to present the data. ATIS active runway was 19 (the shorter one) and no mention was made of 10 being available or not. On the ACARS, 2 data sets (for 2 runways) were displayed, featuring identical v-spds, assuming the usual format, we figured we were ok for either runway. Usually if the shorter runway is not legal, we will see a display such as 'vim V1 vr V2 flo - runway 19 0 0 0 0 flg - runway 10 144 144 148 155. The display actually showed: vim V1 vr V2 flo - runway 10 144 144 148 155 flo - runway 28 144 144 148 155. Pretty unusual, I felt, to show both data sets for the same runway (or reciprocals of the same piece of concrete) when the acras made no mention of this runway even being available. You can bet that I will be xchking this acras wide-body data much more carefully in the future, especially at unfamiliar airports. Many of our smaller stations seem to have their own ways of operations, differently from the mainstream.

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Original NASA ASRS Text

Title: MLG MAKES OVERWT TKOF FOR RWY USED.

Narrative: OVER-GROSS TKOF, ACTUAL WT 131746 LBS. COMPANY ACARS COMPUTED MAX TKOF WT 132700 LBS WITH ENG BLEEDS OFF. WIND WAS 190 DEGS AT 6 KTS AND WE USED RWY 19 WHEN COMPUTATION WAS FOR RWY 10 (3000 FT LONGER). WE FIGURED LATER THAT WE WERE ABOUT 2000 LBS OVER-GROSSED FOR THE RWY WE USED. CONTRIBUTING TO THE PROB WAS THE CONFUSING WAY THE COMPANY CHOSE TO PRESENT THE DATA. ATIS ACTIVE RWY WAS 19 (THE SHORTER ONE) AND NO MENTION WAS MADE OF 10 BEING AVAILABLE OR NOT. ON THE ACARS, 2 DATA SETS (FOR 2 RWYS) WERE DISPLAYED, FEATURING IDENTICAL V-SPDS, ASSUMING THE USUAL FORMAT, WE FIGURED WE WERE OK FOR EITHER RWY. USUALLY IF THE SHORTER RWY IS NOT LEGAL, WE WILL SEE A DISPLAY SUCH AS 'VIM V1 VR V2 FLO - RWY 19 0 0 0 0 FLG - RWY 10 144 144 148 155. THE DISPLAY ACTUALLY SHOWED: VIM V1 VR V2 FLO - RWY 10 144 144 148 155 FLO - RWY 28 144 144 148 155. PRETTY UNUSUAL, I FELT, TO SHOW BOTH DATA SETS FOR THE SAME RWY (OR RECIPROCALS OF THE SAME PIECE OF CONCRETE) WHEN THE ACRAS MADE NO MENTION OF THIS RWY EVEN BEING AVAILABLE. YOU CAN BET THAT I WILL BE XCHKING THIS ACRAS WIDE-BODY DATA MUCH MORE CAREFULLY IN THE FUTURE, ESPECIALLY AT UNFAMILIAR ARPTS. MANY OF OUR SMALLER STATIONS SEEM TO HAVE THEIR OWN WAYS OF OPS, DIFFERENTLY FROM THE MAINSTREAM.

Data retrieved from NASA's ASRS site as of July 2007 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.