As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT RN 6499 - IAD-ROA - DURING CLIMB-OUT, RETURNED TO IAD DUE TO THE PASSENGER DOOR WARNING LIGHT ILLUMINATING IN FLIGHT. AIRCRAFT LANDED AT IAD WITH NO FURTHER INCIDENTS. MAINTENANCE INSPECTED PASSENGER DOOR AND CLEANED THE DOOR WARNING MICROSWITCHES. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)