What was found
LANDING GEAR DOORS NOT LATCHED LIGHT ON AFTER GEAR RETRACTION - PERFORMED ABNORMAL CHECK-LIST CYCLED GEAR SEVERAL TIMES. PERFORMED OVERWEIGHT LANDING. CHECKED BOTH MLG DOOR UPLATCHES MECHANISM. BOTH FOUND NORMAL. CLEANED PROXIMITY SWITCHES AND LUBRICATED MECHANISM. OP'S CHECK NORMAL IAW MM 32-60-00 AND 32-31-4. ACCOMPLISHED OVERWEIGHT INSPECTION; NO DEFECTS NOTED IAW ARROW AIR DC8 MM J/C 6100.