What was found
ABORTED TAKEOFF DUE TO ACFT PULLED HARD LEFT AT BEGINNING OF T/O ROLL APPEARS NR 1 & NR 5 WHEEL BRAKES LOCKED UP ABORTED AT APPROXIMATELY 70-80 KNOTS. REF LOG 8115523 NR 1 BRAKE "GRABBING". REMOVED & REPLACED NR 5 BRAKE ASSY PER AMM 32-42-27. OPS NORMAL NO DEFECTS FOUND DURING BITE MAX REPORTED BRAKE TEMP ON NR 1 AND NR 5 WAS 390 DEGREES C. OK TO CONTINUE PER MEL 32-42-1 DEACTIVATED NR 1 BRAKE ASSY PLACARD INSTALLED LIDS UPDATED.