As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN GEAR WAS EXTENDED FOR LANDING INTO EWR, THREE GREEN AND THREE RED LIGHTS WERE RECEIVED ON THE MAIN PANEL AND THERE WERE THREE GREENS ON THE OVERHEAD. THE GEAR WAS CYCLED DURING A GO-AROUND AND THE GEAR EXTENDED NORMALLY WITH PROPER INDICATIONS. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE LANDING GEAR CONTROL LEVER DIRTY. THE CONTROL LEVER WAS CLEANED AND LUBRICATED. OPERATIONAL CHECKS WERE NORMAL.