What was found
ON TAKEOFF ROLL, CREW EXPERIENCED A SEVERE VIBRATION AT APPROX 150-155 KNOTS. REJECTED TAKEOFF ACCOMPLISHED AT 160 KNOTS. WHILE TURNING OFF RUNWAY, FLUID FROM HYD SYSTEM NR 1 DEPLETED & PRESSURE LOST. APU STARTED & ENGINES TURNED OFF. AS A CONSEQUENCE OF EVENT, 2 TIRES ON LT MLG HAD BLOWN & FRAGMENTS PIERCED A HYD LINE; TWELVE OTHER TIRES DEFLATED ON MLG DUE TO AN OVERTEMP FROM REJECTED TAKEOFF. ALL TIRE ASSEMBLIES R & R, FOUND OPERATIONALLY SATISFACTORY PER AMM 32-40. DIGITAL FLT DATA RECORDER R & R FOR PENDING INVESTIGATION, OPS CHECK PERFORMED FOR REPLACEMENT PER AMM 31-31-01. COCKPIT VOICE RECORDER REMOVED FOR PENDING INVESTIGATION, OPS CHECK PERFORMED FOR REPLACEMENT PER AMM 23-71-01.