As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH WHEN FLAP HANDLE WAS SELECTED TO 15, THE FLAPS REMAINED AT 5. THE POSITION OF THE FLAP HANDLE HAD NO EFFECT ON THE FLAP POSITION BEYOND 5 DEGREES. INSPECTED FLAP SYSTEM AND FOUND ALTERNATE SYSTEM ALSO INOP. REPLACED ALTERNATE FLAP DRIVE MOTOR. FLAP DRIVE SYSTEMS NORMAL AND ALTERNATE CHECK SATISFACTORY.