What was found
ON APPROACH TO KGUP, PILOT SELECTED THE MLG HANDLE TO THE DOWN POSITION, THE LT MLG INDICATOR LIGHT DID NOT ILLUMINATE. PILOT PERFORMED A GO-AROUND & CLIMBED TO A SAFE ALTITUDE NORTH OF THE AIRPORT TO TROUBLESHOOT. PILOT CONTACTED THE COMMS CENTER & MAINTENANCE CONTROL. PILOT COMPLETED ABNORMAL PROCEDURES CHKLIST FOR MLG MANUAL EXTENSION - LIGHT DID NOT ILLUMINATE. PILOT, OPTED TO DIVERT TO KABQ. PILOT CONTACTED ABQ CENTER, DECLARED AN EMERGENCY, & PROCEEDED VFR TO KABQ. ON ARRIVAL AT KABQ, PILOT PERFORMED AN INSPECTION PASS FOLLOWED BY A FULL-STOP LANDING ON RUNWAY 8 - WITHOUT INCIDENT. ACFT WAS SHUTDOWN ON RUNWAY WHERE IT WAS THEN TOWED BY MAINT PERSONNEL TO A HANGAR FOR INSPECTION AND REPAIR.