Narrative:

I was making the takeoff from runway 5L mex. Between vr and V2 prior to liftoff, but after rotation (nose approximately 10-12 degrees above horizon), there was a loud boom and the aircraft veered left. I applied rudder to maintain centerline expecting to takeoff. The captain, whose hand was off the throttles as per procedure (we had passed V1) made an instantaneous decision to abort. I returned the nosewheel to the runway smoothly and applied maximum braking. Airspeed was about 150- 155 KTS at the time braking was initiated. I called the abort on tower frequency and again on ground control clearing the runway at the end. I immediately requested crash fire rescue equipment equipment anticipating a brake fire and then made a PA to the passenger advising them of the situation. There was no evacuate/evacuation, though the passenger were removed promptly by a mobile lounge. Crash fire rescue equipment responded quickly and extinguished the fire immediately. No damage resulted from the fire on the wheels. 1 fuse plug blew. The captain asked that I not mention in my report that the aircraft had passed V1 when he started the abort. I felt at the time that this was a reasonable request. Further reflection leads me to believe I was in error not reporting it. A high speed abort is extremely serious and could have resulted in the loss of the aircraft or lives.

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Original NASA ASRS Text

Title: HIGH SPD ABORT ON TKOF.

Narrative: I WAS MAKING THE TKOF FROM RWY 5L MEX. BTWN VR AND V2 PRIOR TO LIFTOFF, BUT AFTER ROTATION (NOSE APPROX 10-12 DEGS ABOVE HORIZON), THERE WAS A LOUD BOOM AND THE ACFT VEERED L. I APPLIED RUDDER TO MAINTAIN CTRLINE EXPECTING TO TKOF. THE CAPT, WHOSE HAND WAS OFF THE THROTTLES AS PER PROC (WE HAD PASSED V1) MADE AN INSTANTANEOUS DECISION TO ABORT. I RETURNED THE NOSEWHEEL TO THE RWY SMOOTHLY AND APPLIED MAX BRAKING. AIRSPD WAS ABOUT 150- 155 KTS AT THE TIME BRAKING WAS INITIATED. I CALLED THE ABORT ON TWR FREQ AND AGAIN ON GND CTL CLRING THE RWY AT THE END. I IMMEDIATELY REQUESTED CFR EQUIP ANTICIPATING A BRAKE FIRE AND THEN MADE A PA TO THE PAX ADVISING THEM OF THE SIT. THERE WAS NO EVAC, THOUGH THE PAX WERE REMOVED PROMPTLY BY A MOBILE LOUNGE. CFR RESPONDED QUICKLY AND EXTINGUISHED THE FIRE IMMEDIATELY. NO DAMAGE RESULTED FROM THE FIRE ON THE WHEELS. 1 FUSE PLUG BLEW. THE CAPT ASKED THAT I NOT MENTION IN MY RPT THAT THE ACFT HAD PASSED V1 WHEN HE STARTED THE ABORT. I FELT AT THE TIME THAT THIS WAS A REASONABLE REQUEST. FURTHER REFLECTION LEADS ME TO BELIEVE I WAS IN ERROR NOT RPTING IT. A HIGH SPD ABORT IS EXTREMELY SERIOUS AND COULD HAVE RESULTED IN THE LOSS OF THE ACFT OR LIVES.

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.