As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SUPPLEMENTAL INFORMATION. ON APPROACH FLAP SELECTED TO 5 POSITION RESULTED IN 'FLAP FAIL' MESSAGE. SLATS EXTENDED AND FOLLOWED CHECKLIST. EXECUTED A MISSED APPROACH AND DIVERTED TO KDEN DUE TO LONGER RUNWAY FOR FLAPS FAIL LANDING. LANDING WAS UNEVENTFUL. MAINTENANCE ISOLATED THE DISCREPANCY TO A FAULTY FLAP POWER DRIVE UNIT. REPLACED SAME. GROUND OPERATIONAL CHECK WAS PERFORMED WITH NO DEFECTS NOTED. AIRCRAFT WAS RETURNED TO SERVICE.