What was found
LOG 193468/1 EXTREME VIBRATION ON TAKEOFF ROLL. ABORTED TAKEOFF AT 85 KNOTS. BRAKE TEMPS WERE 3,3,2,3. INSPECTED AND RETORQUED NR 1 NLG TIRE, NR 1 MLG TIRE AND NR 4 MLG TIRE IAW CRJ AMM 32-42-01, 32-41-01 AND AMM SUP 08056. NO DEFECTS NOTED.