As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 6314 - IAD-BUF - ABORTED TAKEOFF DUE TO THE PASSENGER DOOR WARNING LIGHT ILLUMINATING. AIRCRAFT RETURNED TO GATE WITH NO FURTHER INCIDENTS. MX ADJUSTED DOOR HANDLE, CLEANED AND LUBED MICROSWITCHES AND PLUNGERS. REPLACED WORN DOOR BUSHING. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. REFERENCE VTZA96228.