What was found
DURING APPROACH WHEN LANDING GEAR LOWERED, LANDING GEAR INDICATIONS ON FORWARD PANEL INDICATED 3 DOWN GREEN WITH 3 RED UNLOCKED INDICATION, POSITION DETECTION SYSTEM WAS SELECTED TO SYS 1. ECAM DIRECTED SWITCH TO POSITION DETECTOR SYS 2. SWITCHED TO SYSTEM 2 FORWARD INDICATION SYSTEM REMAINED THE SAME 3 GREEN, 3 RED OVERHEAD LANDING GEAR INDICATORS INDICATED 3 GREEN, RECYCLED LANDING GEAR USING SYS 1 DETECTOR AND RECEIVED NORMAL INDICATIONS 3 GREEN, NO RED UNLOCKED. INSPECTED AND PERFORMED PROX BOX UNIT TEST IAW AMM 32-00-00-501 PROX UNIT TESTED GOOD NO FAULTS LOGGED OR SHOWING. ALL COCKPIT LANDING GEAR INDICATION SYS TEST GOOD. COULD NOT DUPLICATE, OK TO CONTINUE.