As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAD-ALB - FLT 6372 - DURING APPROACH, DECLARED AN EMERGENCY DUE TO NO DOWN AND LOCKED INDICATION AFTER GEAR EXTENSION. ACFT LANDED WITH NO FURTHER INCIDENTS. MAINTENANCE CLEANED AND LUBED MICROSWITCHES. ACFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (W)