What was found
RDU/GSP - FLT 5010 - ON 10-17-95 USAIR EXPRESS FLT WAS APPROX 20 MILES FROM DEST IN GSP WHEN NOSE GEAR GREEN DOWN & LOCKED LIGHT ILLUMINATED. CREW VISUALLY VERIFIED NOSE GEAR STILL IN UP POSITION BY LOOKING AT PROP SPINNER. LDNG GEAR SELECTED DOWN & NOSE GEAR SHOWED GREEN & RED INDICATIONS, BOTH MAIN GEAR INDICATIONS NORMAL. LDNG GEAR VISUALLY VERIFIED IN DOWN POSITION. CAPT DECLARED CONDITIONAL EMERG & HAD EMERG EQUIP STANDING BY. ACFT MADE SAFE LDNG IN GSP. AFTER SAFELY REACHING GATE & DEPLANING PASSENGERS, CAPT VISUALLY VERIFIED GEAR HAD BEEN DOWN & LOCKED. ACFT FERRIED TO CLT. MX INSP NLG POS & WARNING SYS, FND DNLK MICROSWITCH FAILED & REPLACED W/DIFFERENT P/N IAW JTSTRM SB 32JA891142, PART NR 1.