Narrative:

Taking runway at stt I executed a left 270 degree turn as per airline procedure because taxiway does not enter runway at end. All takeoffs are done by captain, with maximum power, no packs, 20 degree flaps due to short runway. All caribbean had reports of low level wind shear and turbulence below 1000' due to strong easterly wind. Applied takeoff power as per operations manual by running throttles to vertical position, released brakes and pushed toga levers on throttles, engaging automatic throttles. Aircraft rolled a few ft when it made a sharp left turn (45 degrees). I pulled back the throttles to idle, applied maximum braking and tried to steer the aircraft with nose wheel steering. Nose wheel steering had no effect. Aircraft came to rest with nose wheel off runway and left main gear half off/half on, runway and the right main wholly on the runway. Aircraft heading approximately 45/50 degrees. I started APU, shut down engines. Passenger were deplaned with mobile stairs. Aircraft was light and as takeoff power was applied west/O rolling takeoff due to short runway, the thrust caused the nose to lighten enough so that a gust of wind against the tail caused the aircraft to weather/cock into the wind. Ground speed never got above 15-20 KTS, and because the anti-skid does not engage until 80 KTS, all wheels locked, tires skidded and had to be replaced.

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Original NASA ASRS Text

Title: ACR WDB RWY EXCURSION.

Narrative: TAKING RWY AT STT I EXECUTED A LEFT 270 DEG TURN AS PER AIRLINE PROC BECAUSE TXWY DOES NOT ENTER RWY AT END. ALL TKOFS ARE DONE BY CAPT, WITH MAX PWR, NO PACKS, 20 DEG FLAPS DUE TO SHORT RWY. ALL CARIBBEAN HAD RPTS OF LOW LEVEL WIND SHEAR AND TURB BELOW 1000' DUE TO STRONG EASTERLY WIND. APPLIED TKOF PWR AS PER OPS MANUAL BY RUNNING THROTTLES TO VERT POS, RELEASED BRAKES AND PUSHED TOGA LEVERS ON THROTTLES, ENGAGING AUTO THROTTLES. ACFT ROLLED A FEW FT WHEN IT MADE A SHARP LEFT TURN (45 DEGS). I PULLED BACK THE THROTTLES TO IDLE, APPLIED MAX BRAKING AND TRIED TO STEER THE ACFT WITH NOSE WHEEL STEERING. NOSE WHEEL STEERING HAD NO EFFECT. ACFT CAME TO REST WITH NOSE WHEEL OFF RWY AND LEFT MAIN GEAR HALF OFF/HALF ON, RWY AND THE RIGHT MAIN WHOLLY ON THE RWY. ACFT HDG APPROX 45/50 DEGS. I STARTED APU, SHUT DOWN ENGS. PAX WERE DEPLANED WITH MOBILE STAIRS. ACFT WAS LIGHT AND AS TKOF PWR WAS APPLIED W/O ROLLING TKOF DUE TO SHORT RWY, THE THRUST CAUSED THE NOSE TO LIGHTEN ENOUGH SO THAT A GUST OF WIND AGAINST THE TAIL CAUSED THE ACFT TO WEATHER/COCK INTO THE WIND. GND SPD NEVER GOT ABOVE 15-20 KTS, AND BECAUSE THE ANTI-SKID DOES NOT ENGAGE UNTIL 80 KTS, ALL WHEELS LOCKED, TIRES SKIDDED AND HAD TO BE REPLACED.

Data retrieved from NASA's ASRS site as of August 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.