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 OFF LIGHT ILLUMINATED DURING FLIGHT. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT MIA. REMOVED AND REPLACED EXHAUST LOW FLOW DETECTOR SENSOR. PER AMM 21-21-03. OPERTIONAL CHECK NORMAL.