As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLIGHT 4920, THE CREW REPORTED A PACK 1 OVERLOAD. THE AIRCRAFT DIVERTED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE NUMBER ONE PACK OVERTEMP SWITCH, OPERATIONALLY TESTED WITH NO DEFECTS. AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.