As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMBOUT FROM PHIK THE LEFT PACK DUCT TEMPERATURE WENT TO 80 DEGREES. CREW TURNED OFF PACK AND THE TEMPERATURE WENT UP. CREW RETURNED TO PHIK AND LANDED WITH OUT INCIDENT. MAINTENANCE REMOVED AND REPLACED LEFT AIR MIX VALVE IN ACCORDANCE WITH ALL APPLICABLE MANUALS. SYSTEM OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.