As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS NOT DECLARED DUE TO: EQUIPMENT COOLING EXHAUST FAN OFF LIGHT ILLUMINATED AT CRUISE. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT MIA. REMOVED AND REPLACED ALTERNATE (AALA202512024089) AND PRIMARY (AALA202512022695) EXHAUST FAN. PER AMM 21-27-04. OPERATIONAL AND LEAK CHECK GOOD.