What was found
WHILE ON APPROACH, THE LANDING GEAR WAS SELECTED TO DOWN POSITION, THE NOSE GEAR DID NOT EXTENDED TO DOWN AND LOCKED. EMERGENCY PROCEDURES PERFORMED WITH NO RESULTS. ACFT MADE EMERGENCY LANDING WITH MINOR DAMAGE TO NOSE CONE. PILOT AND PASSENGER EGRESSED ACFT WITH NO INJURIES. MAINTENANCE PERSONNEL FROM FOUND THE NLG ARM, PN 35-825172-2, HAD BROKEN IN 3 PLACES WHERE IT ATTACHES TO THE LANDING GEAR MOTOR SPLINE.