As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DEPARTURE FROM BOS, FLT NR 4414, HAD A FORWARD CABIN DOOR WARNING LIGHT ILLUMINATE. THE AIRCRAFT RETURNED TO BOS AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED THE DOOR WARNING SYSTEM AND FOUND NO FAULT. THE SYSTEM WAS OPS CHECKED AND ALL INDICATIONS WERE NORMAL. AIRCRAFT WAS RETURNED TO SERVICE. (M)