What was found
ON TAKEOFF ROLL NR 1 ENG SIGNIFICANTLY OUT ACCELERATED NR 2 WHEN TOGA WAS SELECTED RESULTING IN A YAW. TAKEOFF REJECTED AT LESS THAN 20KTS. . TROUBLESHOT IAW AMM 71-00-00-700-824-F00. RAN TEST 8 ACCELERATION CHECK. FOUND NR 1 & 2 ENGINES WITHIN ACCELERATION LIMITS. COULD NOT DUPLICATE FAULT AT TARGET SPEEDS. FOUND NO EEC FAULTS IN NR 1 OR 2 RECENT/FAULT HISTORY. COULD NOT DUPLICATE FAULT AT THIS TIME; FDR DATA SENT TO ENGINEERING FOR INVESTIGATION.;[02] ENGINEERING CONFIRMED VIA DFDR DATA BOTH ENGINES ARE OPERATING NORMALLY.