What was found
ON APPROACH, NOSE GEAR DOWN LIGHT DID NOT ILLUMINATE AFTER LOWERING LANDING GEAR. NOSE GEAR LIGHT WOULD NOT TEST, REPLACED LIGHT BULBS STILL NO TEST. PERFORMED GEAR DISAGREE CHECKLIST IN QRH. NOSE GEAR LIGHT STILL INOP. HAD TOWER VISUALLY CHECK NOSE GEAR DOWN. DECLARED EMERGENCY LANDED UNEVENTFULLY. RESEATED NOSE GEAR LIGHT CAPSULE, NOSE GEAR INDICATION WORKS NORMAL. FOUND THAT BY TOUCHING THE LIGHT CAPSULE THE NOSE GEAR LIGHT WOULD GO OFF THEN COME BACK ON. NOSE GEAR LIGHT SWITCH IS INTERMITTENT. PERFORMED MLG POSITION INDICATING AND WARNING SYS ADJUSTMENT TEST IAW MM 32-61-00-5, PASSED.