What was found
RT MAIN GEAR DOWN INDICATION "GREEN LIGHT" INTERMITTENT. CHECKED WITH ALT MAIN GEAR INDICATION. SHOWED GEAR DOWN. DID A MISSED APPROACH AND DECLARED AN EMERGENCY. VERIFIED NO RIGHT GEAR INDICATION, ALT SYS GOOD, FOUND CORROSION ON SWITCH S1-184 AND CONNECTOR P1-129. CONNECTOR P1-129 HAD THREE BROKEN WIRES AT PINS. REMOVED AND REPLACED CONNECTOR P1-129 AND SWITCH S1-184 IAW DC-9 MM 32-61-00 AND 32-60-01-2. COMPLIED WITH GEAR SWING IAW DC-9 MM 32-60-00-22A1-23. OPS CHECKED GOOD.