What was found
NAS/MIA - FLT 488 - PILOT REPORT: LANDING GEAR DOWN, RED HANDLE LIGHTS, LT MAIN 'GREEN' NOT LIT. CYCLED GEAR AND GOT PROPER INDICATIONS UNTIL PUT FLAPS TO LANDING POSITION, THEN RED LIGHTS IN HANDLE ILLUMINATED AND LT MAIN GREEN LIGHT EXTINGUISHED AN AURAL WARNING. MAINTENANCE: REMOVED AND REPLACED LT MAIN GEAR DOWN POSITION SWITCH, SWUNG GEAR. OPS CHECKS ALL GOOD.