What was found
DURING VISUAL APPROACH, LANDING GEAR WAS SELECTED DOWN & RECEIVED THREE RED ON PRIMARY & SECONDARY DISPLAYS. CYCLED GEAR & RECEIVED SAME RESULT. BOTH TIMES FELT GEAR EXTEND, PERFORMED A LOW APPROACH & TOWER CONFIRMED GEAR WAS DOWN. AT 1000 FT THEN FINALLY RECEIVED THREE GREEN ON BOTH DISPLAYS, RAN QRH & LANDED. CHECKED PSEU SENSOR READOUT FOR POWER INPUTS & DISCRETE INPUTS. ALL READINGS NORMAL. CHECKED GEAR HANDLE & LANDING GEAR ALTERNATE EXTENSION HANDLE SWITCH. BOTH CHECKED GOOD. ADJUST SELECTOR VALVE ASSEMBLY. CLEANED & LUBED LANDING GEAR HANDLE CABLES IAW SMP. PERFORMED GEAR SWING OF ALL 3 LG. OPS CHECKED GOOD IAW AMM 32-30-00-5.