What was found
AT AROUND 15:58 SEVERAL CAS LIGHTS ILLUMINATED, ALONG WITH THE LOSS OF VARIOUS SERVICES AND THE UPPER MODES. AFTER CONSULTING THE QRH WE ATTEMPTED TO RESET THE 2 TRU AS PER THE QRH AND ON THE THIRD ATTEMPT WE WERE ABLE TO RESET IT, AT WHICH TIME, MOST OF THE CAS LIGHTS CLEARED AND WE REGAINED SOME OF THE UPPER MODES. NOT LONG AFTER THAT WE STARTED SMELLING A BURNING ELECTRICAL ODOR, DECLARED AN EMERGENCY WITH NEW ORLEANS APPROACH AND STARTED TO DESCEND IN VMC CONDITIONS DIRECT TO KHUM, CONSTANTLY CHECKING THE SYSTEMS AND THE TAIL CAMERA FOR ANY INDICATION OF SMOKE OR FIRE. LANDED IN KHUM AT 16:37 AND HELD ON RUNWAY 36 UNTIL EMERGENCY SERVICES VERIFIED THAT THERE WAS NO FIRE/SMOKE VISIBLE, AND THEN TAXIED TO THE RAMP AND SHUT DOWN.