What was found
DURING CLIMB-OUT FROM SMF WE HIT A FLOCK OF LARGE BIRDS, ONE OR MORE IMPACTED NR 2 ENGINE. THE ENGINE RAN NORMAL AT IDLE POWER, BUT WE HAD AIRFRAME VIBRATION AND A BURN SMELL FROM THE RIGHT PACK. AIRCRAFT DIVERTED INTO OAK AND MADE AN UNEVENTFUL LANDING. PERFORMED BIRDSTRIKE INSPECTION PER 5-51-37. FOUND FAN BLADES NR 20 AND NR 21 WITH EXCESSIVE DISTORTION. REMOVED AND REPLACED AND REPOSITIONED BLADES AND REMOVED AND REPLACED ENG NOSE COWL PER MM. PERFORMED HIGH POWER RUN OK PER MM.