As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT AND RIGHT MAIN LANDING GEAR UNSAFE LIGHTS REMAINED ON AFTER GEAR EXTENSION. FLIGHT CREW DECLARED AN EMERGENCY AND VISUALLY CONFIRMED GEAR TO BE DOWN AND LOCKED. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED PSEU PROCESSOR, OPERATIONAL CHECK NORMAL.