What was found
REQ BIRD STRIKE INSP LH ENG GEAR AND FLAPS WERE UP. LT ENG VIBE AT 1.5. N1 REDUCED 10 PERCENT COMPARED TO RT ENG APPROX 2 MINUTES ENG INDICATIONS RETURNED TO NORMAL. KEEP LT ENG AT REDUCED POWER SETTING AUDIBLE CHANGE WHEN TRYING TO INCREASE POWER. CW BS INSPECTION 05-51-25. C/W BIRD STRIKE INSP LT ENG BOROSCOPE INSP. C/W INSP OF LT ENG INLET COWL LIP DAMAGE BEYOND SRM DENT LIMITS IAW SRM 71-61-01, NO CRACKS OR CREASES AND ALL FASTENERS SECURE. R & R NOSE INLET COWL. DURING BS INSP FOUND DAMAGE TO NR 14 BLADE LT ENG. R & R NR 14 AND 28 BLADES LT ENG IAW 72-20-00. DURING BS INSP FOUND DAMAGE TO FAN BLADE NR 20 LT ENG. R & R NR 20 AND NR 6 FAN BLADES LT ENG IAW 72-20-00. DURING BS INSP FOUND DAMAGE TO FAN BLADE NR 10 LT ENG. R & R NR 10 AND NR 24 FAN BLADES LT ENG IAW 72-20-00. DURING BS INSP FOUND DAMAGE TO FAN BLADE NR 21 LT ENG. R & R NR 21 AND NR 7 FAN BLADES LT ENG IAW 72-20-00. C/W LT ENG VIBE AND POWER ASSURANCE CHECKS IAW AMM 71-00-00 VIBES 0.9 POWER ASSURANCE OK C/W LT ENG ANTI-ICE OP CK IAW AMM 30-22-01, NO DEFECTS NOTED.