As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT FL310 RT PACK TRIPPED AFTER RUNNING FULL HOT. STARTED DESCENT AND LEFT PACK ALSO TRIPPED. CABIN APPROACHED 10,000. F/A'S NOTICED SMELL FROM PACKS IN CABIN. PACKS RECOVERED AFTER LEVEL AT 8000 FT. INSPECTED LT AND RT PACKS FOR BLOWN DUCTS AND ACM'S FOR ROTATION, ALL OK. CLEANED CABIN AND COCKPIT TEMP SENSORS. RAN PACKS IN AUTO AND MANUAL FULL COLD AND FULL HOT WITH APU AND ENGINES. ALL OPN IS NORMAL. PACKS CHECK OK.