What was found
CREW REPORTED A FLAP FAIL MESSAGE, ON APPROACH SLATS OPERATED, HOWEVER, FLAPS DID NOT. CREW DECLARED AN EMERGENCY AND REQUESTED EMERGENCY EQUIPMENT BE STANDING BY. CREW DID NOT HAVE PASSENGERS BRACED, LANDED WITHOUT INCIDENT AND TAXIED TO GATE UNDER OWN POWER. MAINTENANCE TROUBLESHOT AND FOUND THE FLAP SKEW SENSOR HAD FAILED. MAINTENANCE R & R THE FLAP SKEW SENSOR IAW AMM AND OPS CHECKED GOOD. ACFT IS GOOD FOR SERVICE.