What was found
PILOT REPORT DURING APPROACH AT MTR WHEN GEAR HANDLE DOWN, LIGHTS CAME ON, NOSE LDG GEAR PIN EXTENDED AND MAIN LANDING GEAR EXTERIOR VERIFICATION PERFORMED AT MTR BY ATC (ALL GEAR EXTENDED). BITE WAS ACCOMPLISHED ON PSEU IAW AMM 32-60-04 PG 201, IN ACCORDANCE WITH AMM 32-60-00 PG 1-2 PROXIMITY SENSOR WERE CHECKED, HARNESS WAS ISOLATED ON LEFT LANDING GEAR PROXIMITY SENSOR.