What was found
(CAN) OPERATOR REPORTED THAT ON A/C 2007 , WHEN RETURNING TO BASE , ON LANDING PREPARATION , WITH LANDING GEAR HANDLE SELECTED DOWN , NLG DOWN GREEN LIGHT DO NO COME ON AND HANDLE WAS FLASHING RED. CREW TRIED WITH EMERGENCY GEAR DOWN AND THE SAME HAPPENED. CREW DECIDED TO LAND AND FINALLY LANDED SAFELY. IT WAS DETERMINED THAT THE NLG DOWNLOCK MICROSWITCH WAS NOT ADJUSTED PROPERLY , SWITCH READJUSTED AND SYSTEM TESTED AS PER MM AND A/C RETURNED TO SERVICE , WITH NO PROBLEMS.