What was found
AFTER 1.4 EPR CHECK, WHICH WAS COMPLETELY NORMAL, POWER WAS ADVANCED ON ALL ENGINES. AT APPROXIMATELY 1.6 EPR AND 60 KTS THE NR 1 PACK TRIP LIGHT ILLUMINATED FOLLOWED BY THE ENGINE FAIL LIGHTS. ABORTED THE TAKEOFF AT THAT POINT THE FLIGHT ATTENDANT HEARD A SERIES OF BANGS AND POPS, WE DIDN'T HEAR ANYTHING. ALL ENGINE INDICATIONS NORMAL. NR 1 ENGINE HAS 4 DAMAGED BLADES: 3 ARE REPAIRABLE AND 1 REQUIRES NO REPAIR. NR1 ENGINE BLADES REPAIRED. NR 3 ENGINE REMOVED AND REPLACED.