What was found
ON TAKE OFF ROLL FLIGHT CREW REPORTED AN AUTO THROTTLE OFF INDICATION AND ABORTED THE TAKE OFF BETWEEN 50-60 KNOTS AND RETURNED TO THE GATE. AIRCRAFT GROUNDED. MAINTENANCE ACCOMPLISHED RESET OF FMGC,S ,FLIGHT WARNING COMPUTERS & FCU,S 1&2 PER TSM 24-00-00 IN ADDITION ACCOMPLISHED A SATISFACTORY AFS TEST IAW AMM 22-96-00 & LAND CAT 3 CAPABILITY TEST IAW AMM 22-97-00.