As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN TEMPERATURE DIFFICULT TO CONTROL, CANNOT WARM UP THE CABIN & COCKPIT. INSPECTED AND CLEANED CABIN AND FLT DECK TEMP SENSORS AND EVALUATE TEMP CONTROL SYSTEM AS REQUIRED. REPAIRED LARGE AIR LEAK AT JOINT BETWEEN ACM AND PREHEATER IN LT PACK. REPLACED RT PACK AC COMP OUT SENSOR AND RT PACK TEMP SENSOR PACK OUT TEMPS NOW WITHIN LIMITS. DURING T/S FOUND RT PACK STUCK IN LOW FLOW.