As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB-OUT OF SYR, THE BAGGAGE BAY SMOKE DETECTOR LIGHT ILLUMINATED. THE A/C RETURNED TO THE FIELD AND LANDED WITHOUT INCIDENT. THE SYSTEM WAS INSPECTED, REPLACED FORWARD DETECTOR, AND DISPATCHED UNDER MEL 26-08. SUBSEQUENTLY, DURING RON MAINTENANCE, THE AFT DETECTOR WAS REPLACED. SYSTEM OPERATIONALLY CHECKED GOOD. A/C RETURNED TO SERVICE. REFERENCE PCAA9700343.