What was found
AFTER T/O & EN ROUTE, RECEIVED RT MLG RED & GREEN LIGHT INDICATION. ON APPROACH, AFTER LOWERING GEAR ALL THREE LIGHTS INDICATED GREEN. AFTER LANDING MX PINNED GEAR FOR TAXI TO GATE. MX CYCLED GEAR 5 TIMES COULD NOT DUPLICATE PROBLEM. AS A PRECAUTION REPLACED RT MLG HYD MODULE IAW BMM 32-32-61. ALSO REPLACED TRANSFER CYLINDER IAW BMM 32-32-71. OPERATIONAL CHECK GOOD. RECEIVED TEAR DOWN REPORTS FOR HYDRAULIC MODULE & TRANSFER CYLINDER. THE MLG HYDRAULIC MODULE WAS INSPECTED, TEST & OVERHAULED IAW CMM NO FAULTS WERE FOUND. HYDRAULIC TRANSFER CYLINDER INSPECTED, TESTED, AND OVERHAULED IAW CMM 32-40-01 REV. 20, NO FAULTS WERE FOUND ON THIS UNIT EITHER.