What was found
(CAN) WHILE IN THE CROSSWIND LEG FOR THE CIRCUIT FOR 36, THE STUDENT NOTICED SMOKE COMING FROM LANDING LITE SWITCH, WHICH WAS FOLLOWED BY A BURNING SMELL. THE PIC (PILOT) ELECTED TO MAKE A FULL STOP AND AN UNEVENTFUL LANDING WAS EXECUTED. UPON INSP AND REMOVAL OF LANDING LIGHT SWITCH, IT WAS FOUND THE SWITCH FAILED , NO OTHER DAMAGE NOTED.