As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 6407 - IAD-LGA - DURING LANDING, THE PASSENGER DOOR WARNING LIGHT ILLUMINATED. AIRCRAFT TAXIED TO GATE WITH NO FURTHER INCIDENTS. MAINTENANCE REPAIRED A CHAFED WIRE AT THE DOOR HANDLE MICROSWITCH. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M0