As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 4471 - TAKEOFF FROM BOS, THE CREW HATCH WARNING LIGHT ILLUMINATED. THE AIRCRAFT RETURNED TO BOS LANDING WITHOUT INCIDENT. MAINTENANCE WAS DISPATCHED TO THE AIRCRAFT. TROUBLE SHOOTING FOUND THE SHOOT-BOLT WORN AT THE MICRO-SWITCH ACTUATING POINT. MAINTENANCE REPLACED THE SHOOT-BOLT AND RETURNED THE AIRCRAFT TO SERVICE. (M)