What was found
ON TAKEOFF ROLL EXTREMELY STRONG VIBRATION FELT AT APPROX 60 KNOTS, TAKEOFF ABORTED. GROUNDED - YES. INSPECTED ALL 4 ANTI-SKID TRANSDUCERS, NO DEFECT NOTED. ACCOMP TRANSDUCER OPS TEST IAW AMM 32-42-00. ALL 4 GEAR TESTS PASSED. FOUND DAMAGE TO NR 1 BRAKE ON OUTER PADS, R & R NR 1 & 2 MLG BRAKE ASSY IAW MM 32-41-41-400-801. LEAK CKD GOOD. REMOVED NR 4 MLG TIRE AS A PRECAUTION DUE TO ABORTED TAKE OFF. INSTALLED NEW NR 4 MLG TIRE IAW AMM 32-45-11-400-801. ACFT RELEASED FOR SPECIAL FLT TO SEA IAW FLT PERMIT TO ACCOMPLISH REPAIR TO PANEL 194CL & AFT INBD LT FLAP & SCHED LL1 TASK. COMPLETED BRAKE SEZURE COND INSPECT IAW AMM 05-51-15-210-801. NO DEFECTS NOTED, NO OVRHT CONDITION OF LT AXLE & SLEEVE FOUND.