What was found
AIRCRAFT WAS GROUNDED: ALL GEAR AND DOOR INDICATIONS NORMAL THEN LOST INDICATIONS ON NOSE WHEEL. NO ECAM MESSAGE PRESENT FOR NOSEWHEEL. FLIGHT WAS NEAR KCOS AND DECIDED KDEN WAS SAFEST FOR OPERATION, DECLARED AN EMERGANCY AIRCRAFT LANDED WITHOUT INCIDENT. MAITNENANCE REPLACED #1 LANDING GEAR UNIT IAW MM 32-69-00,