What was found
AIRCRAFT WAS GROUNDED: PILOT REPORTS DURING T/O, ADVANCED THRUST LEVER TO 1.05 AFTER THE THRUST WAS STABLE, ADVANCED TO THE CLB DETENT AND NOTICED THE #2 ENGINE THRUST SLOW TO ADVANCE. AT THE CLB DETENT THE THRUST ON THE #2 ENG STOPPED AT 1.2 WHILE THE THRUST ON THE #1 ENGINE WAS INDICATING 1.35 ELECTED TO REJECT THE T/O THAN TO CONTINUE TO ADVANCE TO THE FLEX DETENT. AIRCRAFT ONLY REACHED 60KTS DURING THE T/O ROLL. MAINTENANCE RAN #1 AND #2 ENG IAW J/C V2500 HIGH POWER ASSURANCE TEST 26L00071014. NO DEFAULTS ON THE #2 ENG. BOTH ENGINES MATCHED ON EPR AND THRUST. OPS CHECK NORMAL. OK FOR SERVICE.