What was found
BIRD STRIKE NR 1 ENG DURING TAKEOFF, AFTER V1, AUDIO CHANGED IMMEDIATELY. CONTINUED TAKEOFF & EVM COMP READINGS 2.3 TO 5.0 THRU REMAINING FUEL DUMP & ATB. SHTDWN NR 1 ENG AFT LNDG. POST FLT INSP FOUND 4 - 6 N1 FAN BLADES & 1 SENSOR BENT. EMERGENCY DECLARED. REMOVED SPINNER & ALL FAN BLADES IAW AMM 72-31-02-4-1. INSTALLED ALL BLADES & SPINNER IAW AMM 72-31-02-4-1. RAN #1 AND #3 ENG'S IAW JRH & RAN #1 ENG VIBRATION SURVEY IAW JRH CH 07, FOUND FAN VIBRATION 2.4 UNIT AT N1 99% FIRST ATTEMPT, RAN #1 ENG FAN TRIM BALANCE IAW AMM 72-30-00-5-1. RAN #1 ENG VIBRATION SURVEY IAW JRH CH 07, FOUND FAN VIB 0.5 UNIT AT N1 99% ON 2ND ATTEMPT. RAN #1 ENG POWER ASSUR IAW JRH CH 4 AND ASSUR GOOD. OK FOR SVC.