As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WITH BOTH PACKS OFF, THE RIGHT PACK TEMP INCREASED CAUSING A PACK TRIP OFF. TURNED RIGHT PACK ON AND SELECTED WARMER TEMPERATURE-PACK TEMP COOLED DOWN. SMOKE IN CABIN AT THE TIME OF PACK TRIP. RAN BOTH PACKS, ALL OPERATED NORMALLY. RESEATED AND CLEANED C/P ON BOTH PACK VALVES. ALL APPEARS NORMAL PER MM 21-51-61. (X)