As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SYR - FLT 4372 - AFTER TAKEOFF, THE FORWARD CABIN DOOR WARNING LIGHT ILLUMINATED. THE AIRCRAFT RETURNED TO SYR LANDING WITHOUT INCIDENT. THE DOOR WARNING SYSTEM WAS MEL'D AND THE AIRCRAFT RETURNED TO SERVICE. THIS WAS THE LAST DAY OF SERVICE FOR THE AIRCRAFT. THE AIRCRAFT WAS RETURNED TO BEECH WITH THE DOOR WARNING SYSTEM DEFERRED. (X)