As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT ATTENDENT REPORTED SMOKE IN CABIN ON CLIMBOUT. LEFT AIR PACK SWITCHED OFF AND AIRCRAFT RETURNED TO FIELD. AIRCRAFT LANDED WITHOUT FUTHTER PROBLEM. LEFT HX FAN CIRCUIT BREAKER TRIPPED CAUSING PACK TO OVERHEAT. ALSO, TAXI LIGHT BREAKER TRIPPED. CIRCUIT BREAKERS RESET AND LEFT AIR PACK OPS CHECKED GOOD.