As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH WHEN FLAPS SELECTED TO 15 TO 35, THE FLAP POWER CAUTION ILLUMINATED AND THE FLAPS STUCK AT 15 DEGREES. LANDED AT 15 DEGREES FLAPS WITHOUT INCIDENT. REPLACED THE FLAP CONTROL UNIT IAW AMM 27-51-010-000-801/400-801. RETURNED TO SERVICE.