Narrative:

Checklist being read during taxi. Prior to weight portion I asked via ACARS for weights, got a return and printout with new weights, entered the new zero fuel weight at panel and passenger count agreed. However (realized at a later time), this was an updated preliminary. ACARS printed the final right after liftoff (noticed when I put pneumatics on at power reduction) takeoff at xa:31, printout at xa:32. Preliminary weights (updated weights which were used) and finals were same. When I changed zero fuel weight at my panel, it must have triggered finals in my mind when reached on the checklist as I was giving cabin ready announcement, reading checklist, and xchking the pilots doing or having done their items.

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Original NASA ASRS Text

Title: A NEW DC10 SO GOT THE PLANNED WT MANIFEST AND THE FINAL WT MANIFEST MIXED UP. CREW TOOK OFF WITHOUT THE FINAL NUMBERS.

Narrative: CHKLIST BEING READ DURING TAXI. PRIOR TO WT PORTION I ASKED VIA ACARS FOR WTS, GOT A RETURN AND PRINTOUT WITH NEW WTS, ENTERED THE NEW ZERO FUEL WT AT PANEL AND PAX COUNT AGREED. HOWEVER (REALIZED AT A LATER TIME), THIS WAS AN UPDATED PRELIMINARY. ACARS PRINTED THE FINAL RIGHT AFTER LIFTOFF (NOTICED WHEN I PUT PNEUMATICS ON AT PWR REDUCTION) TKOF AT XA:31, PRINTOUT AT XA:32. PRELIMINARY WTS (UPDATED WTS WHICH WERE USED) AND FINALS WERE SAME. WHEN I CHANGED ZERO FUEL WT AT MY PANEL, IT MUST HAVE TRIGGERED FINALS IN MY MIND WHEN REACHED ON THE CHKLIST AS I WAS GIVING CABIN READY ANNOUNCEMENT, READING CHKLIST, AND XCHKING THE PLTS DOING OR HAVING DONE THEIR ITEMS.

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.