As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT PACK TRIPPED AT FL 320. LEVEL FLIGHT RESET ITSELF AFTER 30 SECOND. FOUND PRIMARY HEAT EXH IN LET TEMP SENSOR CONNECTOR LOOSE, SECURED PERFORMED 21 CABIN TEMP CONTROL SYSTEM ON MAT, TEST PASSED INBND MESSAGE NOT ACTIVE. RAN PACKS NO NEW MESSAGES OR FAULTS NOTED.