What was found
CHS - FLT 175 - AFTER T/O AT APPROX 500 FT, CREW HEARD A LOUD NOISE AS IF A COMPRESSOR STALL OCCURRED ON THE NR 2 ENG. THE NR 2 ENG INSTRUMENTS DROPPED OFF TO NEAR IDLE THEN GRADUALLY RECOVERED TO NORMAL. SMOKE WAS REPORTED IN THE CABIN, WHILE ONE PAX REPORTED A HYD SMELL AND ANOTHER BURNED TIRES. FLT RETURNED TO FIELD AT CHS AND LANDED W/O INCIDENT. ODOR IN CABIN DISSIPATED PRIOR TO TOUCHDOWN. NO EMERGENCY WAS DECLARED AND THE ENG WAS NOT SHUT DOWN IN FLT. UPON ARRIVAL AT THE GATE, MX DISCOVERED SIGNS OF A BIRD STRIKE. MX CLEANED BIRD REMAINS FROM THE NR 2 ENG AND THE RT WING LEADING EDGE, INBD OF ENG. NO DAMAGE NOTED TO WING LEADING EDGE. PROGRAMMED FOR NR 18 AND 19, FIRST STAGE FAN BLADE REPLACEMENT