As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DISCREPANCY: PILOTS DECLARED AN EMERGENCY AND DIVERTED TO GEG DUE TO AFT CARGO SMOKE DETECTION/INDICATION. CORRECTIVE ACTION: INSPECTED FWD AND AFT CARGO PITS FOR SIGNS OF SMOKE, FIRE AND FUMES. CARGO PITS FWD AND AFT EMPTY. R & R THE SMOKE DETECTORS.