As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 6377 - IAD-CRW - DURING TAXI, AIRCRAFT RETURNED TO GATE DUE TO THE RED SMOKE CAPTION ILLUMINATING. AIRCRAFT RETURNED TO GATE WITH NO FURTHER INCIDENTS. MAINTENANCE REPLACED THE BAGGAGE BAY SMOKE DETECTOR. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)