As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE BASE INSPECTION FOUND THE LEFT MAIN LANDING GEAR DOWNLOCK PROXIMITY SWITCHES TO BE CORRODED. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE LEFT MAIN LANDING GEAR DOWNLOCK PROXIMITY SWITCHES IAW EMB 145 AMM TASKS 32-61-02-000-801-A & 32-61-02-400-801-A. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.