What was found
CREW REPORTED THE PLANE SUDDENLY JUMPED ON TAKEOFF ROLL AT 20-30 KTS. CREW ABORTED TAKEOFF AND RETURNED TO THE GATE WITHOUT INCIDENT. MAINTENANCE PERFORMED AN INSPECTION OF THE MAIN LANDING GEAR AND FOUND NO DEFECTS. MAINTENANCE ALSO PERFORMED A TAXI CHECK WITH THE CREW AND FOUND NO DEFECTS IN ACCORDANCE WITH THE AIRCRAFT MAINTENANCE MANUAL 32-10-00-210-801. AIRCRAFT WAS RELEASED FOR SERVICE.