As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE, CREW RECEIVED DAU MISCOMPARE WITH BAGGAGE FIRE DETECTION WARNING MESSAGES. CREW ELECTED TO DISCHARGE CARGO COMPARTMENT FIRE BOTTLES IAW QRH AND DIVERTED, ACFT LANDED WITHOUT INCIDENT. MX REPLACED THE DAU COMPUTER AND FOUND THE CARGO COMPARTMENT SMOKE DETECTOR TO HAVE A CORRODED ELECTRICAL CONNECTOR. THE DETECTOR AND ITS ASSOCIATED CONNECTOR WERE REPLACED. OPS CHECKS WERE SATIFACTORY AND THE DISCREPANCIES WERE CLEARED.