As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6504 - ROA-IAD - DURING CRUISE, EXPERIENCED A SMOKE DETECTOR CAPTION LIGHT ILLUMINATION. AIRCRAFT COMPLETED A NORMAL LANDING (NO EMERGENCY DECLARED) AT IAD WHERE MAINTENANCE INSPECTED THE AFT BAGGAGE AREA AND FOUND NO INDICATION OF PROBLEM. TROUBLESHOT SYSTEM AND FOUND SMOKE DETECTOR HAD FAILED. REPLACED SMOKE DETECTOR AND RETURNED AIRCRAFT TO SERVICE. (M)