What was found
(CAN) HIGH VIBRATION ON #2 ENGINE WITH FAN BLADE SHINGLING. INSPECTION FOUND ALL FAN BLADES SHINGLED, MANY BLADES DAMAGED AT MID SPAN SHROUD AREA, TWO BLADES ARE BENT OR TWISTED, MANY BLADES WTIH CONTACT SURFACES "B" AND "A" DAMAGED. THE ENGINE PICKED UP HEAVY SNOW (OR SLUSH) DURING TAKEOFF. ALL FAN BLADES REMOVED. STAGE 2 FAN EXIT VANES AND EXHAUST CHECKED SERVICEABLE. FAN BLADE SET WAS REPLACED. ENGINE GROUND RUN AND VIBRATION SURVEY CARRIED OUT SERVICEABLE.