As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT I 2807 THE CREW REPORTED AN INTERMITTANT AND REPEATED PACK 1 OVER TEMPERATIURE MESSAGE WHILE CLIMBING THRU 15000. THE CREW DECLARED AN EMERGECNY AND ELECTED TO RETURN TO DFW. THE AIRCRAFT WAS REMOVED FROM SERVICE. INSPECTED NR 1 PACK SYSTEM FOR LEAKS AND NONE NOTED. REMOVED AND REPLACED THE PACK OVERTEMP SWITCH IAW 21-51-08. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.