As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6461 - LGA-DCA - LEFT AIRCRAFT PACK FAILED IN FLIGHT, OVERHEATED, SMOKE IN CABIN, SHUTDOWN PACK. OPERATED BOTH PACKS THROUGH ALL TEMPERATURE SETTINGS. PRESSURIZED AND UNPRESSURIZED, COULD NOT DUPLICATE CONDITION. OPERATIONAL CHECK NORMAL PER MM 21-11 AND 21-30. (M)