FLC OF LR25 ON TKOF ROLL IS INFORMED THAT THE R MAIN GEAR IS ON FIRE. TKOF ABORTED.

Narrative

AFTER COMPLETING BEFORE START CHKLIST; I CALLED FOR A BEFORE TAXI CHKLIST. WHEN THE CHK WAS COMPLETED; I BEGAN MY TAXI TO THE ACTIVE RWY 8. I THEN CALLED FOR A TAXI CHKLIST AND AFTER COMPLETING THE REQUIRED CHKS EVERYTHING WAS NORMAL. WHEN I APCHED THE HOLD LINE AND APPLIED THE BRAKES; I ONLY THEN FELT A LITTLE BUMP. I ASKED THE FO IF HE FELT ANYTHING AND THE REPLY WAS IT WASN'T NOTICED BY HIM AND HE THOUGHT IT JUST WAS THE TARMAC (FEELING UNEVEN). I WAS THEN CLRED FOR IMMEDIATE TKOF AND BEGAN TO ROLL. I HEARD ON THE RADIO FROM AN UNKNOWN PLT THAT MY R MAIN LNDG GEAR WAS ON FIRE. I BEGAN TO RETARD THE THROTTLES AND I HEARD THE TWR CALL TO ABORT THE TKOF. I CONTINUED TO ABORT AND DEPLOY THE THRUST REVERSERS. AT THAT POINT I BEGAN TO VEER TO THE L AND AT THAT INSTANT I STOWED THE THRUST REVERSERS AND CONTINUED TO APPLY BRAKES. THE PLANE CAME TO A STOP ONTO THE L SIDE OF THE RWY AND THE PLANE STOPPED JUST BEFORE THE 500 FT HASH MARKS ON THE L SIDE ON THE GRASS OF RWY 8. I CALLED FOR AN IMMEDIATE SHUTDOWN CHKLIST AND CALLED THE TWR TO BRING OUT THE FIRE TRUCKS. I ASKED THE FO TO OPEN THE ACFT AND I THEN FOLLOWED HIM. A REMOVING CREW CAME AND THE MAINT DEPT FOLLOWED. THE ACFT WAS THEN PULLED OUT OF THE SAND AND IT WAS EVIDENT THAT ONLY R LNDG GEAR WAS ON FIRE. THE L GEAR WAS INTACT. I FEEL THAT THERE COULD HAVE BEEN A MECHANICAL FAILURE ON THE R SIDE MAIN LNDG GEAR. I FELT THE FO ACCOMPLISHED ALL HIS DUTIES AS A PROFESSIONAL AND REACTED AS A CONFIDENT AND PROFESSIONAL PLT DURING THIS INCIDENT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATES THAT THE ACFT IS AN LR25. HE IS NOT SURE OF WHAT HAPPENED; BUT THE MECH BELIEVES IT WAS A FAULTY BRAKE VALVE. THE VALVE APPARENTLY BECAME STUCK AND OVERHEATED AND LOCKED. THE R BRAKE WOULD NOT RELEASE. TWR NOTIFIED THE FAA AND THE FSDO COMMUNICATED WITH TWR BUT DID NOT COME TO PHYSICALLY INVESTIGATE. THERE WAS NO DAMAGE TO THE ACFT AND 4 TIRES AND 4 BRAKES WERE REPLACED ALONG WITH THE FAULTY VALVE.