As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 4217 ON APPROACH THE CREW REPORTED THE MAIN GEAR WAS DOWN & LOCKED. AT 1000 FEET THE RIGHT MAIN SHOWED INTRANSIT, THEN UNLOCKED. AFTER GO AROUND CYCLED GEAR TWICE AND PERFORMED ABNORMAL LANDING GEAR EXTENSION AND TOUCH DOWN LANDING WAS LOCKED. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE FORWARD DOWNLOCK PROXIMITY SWITCH IAW M/M 32-61-02. THE OPERATIONAL CHECK SEVERAL TIMES WAS GOOD IAW M/M 32-32-00. NO DEFECTS NOTED AT THIS TIME. THE AIRCRAFT WAS RETURNED TO SERVICE.