Narrative:

Flight ord-mia. Captain called on radio at FL290 30 mins north of nashville, tn, to report he had struck tailskid on aircraft on departure from ord and needed new fuel burns computed on the basis of tailskid in down position. I figured the additional fuel burn and gave information to him over radio and then realized per airlines flight manual part 1 section 8 page 4 paragraph D that he needed to land as soon as possible at the nearest suitable airport. Captain stated he felt he was overweight for takeoff account of aircraft feeling sluggish and had problems flying it off of runway in ord. Flight landed at bna and captain had all bags and freight weighed. After weighing was completed it was determined that aircraft was 2100 pounds over ramp weight and was illegal to move aircraft. It was found that incorrect bag weights were given to load agent. Captain dumped 18000 pounds of fuel and did not land overweight at bna. Supplemental information from acn 185975. Normal heavy weight takeoff procedures were used but after initial rotation aircraft settled down on main gear and this caused the tail skid to impact runway. Aircraft remained on runway passed V2. Supplemental information from acn 185897. Aircraft was loaded to within 1500 pounds of its maximum weight for takeoff. All 3 departure runways at ord were of insufficient length to accommodate the aircraft. Ground control was notified and they assigned 14L for departure. 14L was legal for takeoff but had a 7 KT direct crosswind. Aircraft lifting off at V2 plus 10 and at a distance of about 1000 ft remaining.

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Original NASA ASRS Text

Title: ACR LGT TAIL STRIKE ON TKOF FROM ORD. ACFT WAS 2100 LBS OVER TKOF MAX.

Narrative: FLT ORD-MIA. CAPT CALLED ON RADIO AT FL290 30 MINS N OF NASHVILLE, TN, TO RPT HE HAD STRUCK TAILSKID ON ACFT ON DEP FROM ORD AND NEEDED NEW FUEL BURNS COMPUTED ON THE BASIS OF TAILSKID IN DOWN POS. I FIGURED THE ADDITIONAL FUEL BURN AND GAVE INFO TO HIM OVER RADIO AND THEN REALIZED PER AIRLINES FLT MANUAL PART 1 SECTION 8 PAGE 4 PARAGRAPH D THAT HE NEEDED TO LAND AS SOON AS POSSIBLE AT THE NEAREST SUITABLE ARPT. CAPT STATED HE FELT HE WAS OVERWT FOR TKOF ACCOUNT OF ACFT FEELING SLUGGISH AND HAD PROBLEMS FLYING IT OFF OF RWY IN ORD. FLT LANDED AT BNA AND CAPT HAD ALL BAGS AND FREIGHT WEIGHED. AFTER WEIGHING WAS COMPLETED IT WAS DETERMINED THAT ACFT WAS 2100 LBS OVER RAMP WT AND WAS ILLEGAL TO MOVE ACFT. IT WAS FOUND THAT INCORRECT BAG WTS WERE GIVEN TO LOAD AGENT. CAPT DUMPED 18000 LBS OF FUEL AND DID NOT LAND OVERWT AT BNA. SUPPLEMENTAL INFO FROM ACN 185975. NORMAL HVY WT TKOF PROCS WERE USED BUT AFTER INITIAL ROTATION ACFT SETTLED DOWN ON MAIN GEAR AND THIS CAUSED THE TAIL SKID TO IMPACT RWY. ACFT REMAINED ON RWY PASSED V2. SUPPLEMENTAL INFO FROM ACN 185897. ACFT WAS LOADED TO WITHIN 1500 LBS OF ITS MAX WT FOR TKOF. ALL 3 DEP RWYS AT ORD WERE OF INSUFFICIENT LENGTH TO ACCOMMODATE THE ACFT. GND CTL WAS NOTIFIED AND THEY ASSIGNED 14L FOR DEP. 14L WAS LEGAL FOR TKOF BUT HAD A 7 KT DIRECT XWIND. ACFT LIFTING OFF AT V2 PLUS 10 AND AT A DISTANCE OF ABOUT 1000 FT REMAINING.

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.