As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOI-RECEIVED A GEAR BAY OVERHEAT WARNING WHILE AT 25,000 FEET. NR 3 BRAKE TEMP INDICATED HOT. FOLLOWED EMERGENCY PROCEDURES AND DESCENDED TO 21,000 FEET. WARNING WENT AWAY AND REOCCURRED 10 MINUTES LATER. REPEATED EMERGENCY PROCEDURES AND LEFT LANDING GEAR DOWN. DECLARED AN EMERGENCY. LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED NR 3 BRAKE TEMP THERMOCOUPLE SENSOR. COMPLIED WITH SELF TEST. ALL NORMAL. AIRCRAFT RETURNED TO SERVICE.