What was found
ON APPROACH TO EWR SELECTED GEAR DOWN AND GOT 3 GREEN AND 3 RED LIGHTS. PRIOR TO QRH, F/O PULLED LEVER OUT AN INCH AND BACK IN AND GOT 3 GREEN LIGHTS ONLY. DEBRIEFED CREW, FOUND GEAR HANDLE AS SUSPECT. FOUND UNWANTED DETENT NOT ALLOWING HANDLE TO RETRACT INTO LOCK, CLEANED DRIED GREASE / DIRT FROM HANDLE BUSHING, APPLIED NEW GREASE TO HANDLE, HANDLE NOW MOVES FREELY, PERFORMED SLUS AND SENSOR CHECK AND ALL OPERATED NORMAL.