What was found
DFW - FLT 2034 - DURING APPROACH TO DFW WHEN LANDING GEAR EXTENDED, GEAR UNSAFE LIGHT ILLUMINATED WITH NO ABNORMAL HYDRAULIC QUANTITY OR PRESSURE INDICATIONS. RECYCLED LANDING GEAR AND LANDING GEAR EXTENDED AND LOCKED NORMALLY. AIRCRAFT LANDED DFW WITHOUT INCIDENT. REPLACED LANDING GEAR LEVER SWITCH S1-89. ACCOMPLISHED LANDING GEAR RETRACTION CHECK WITH NO DEFECTS FOUND. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)