As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA- ON APPROACH TO BLI FO ORDERED FLAPS 5. FLAP DID NOT MOVE AND FLAP PWR CAUTION ILLUMINATED. FOLLOWED THE CHECKLIST AND TRIED AGAIN. SAME RESULT. LANDED SEA, LANDING UNEVENTFUL. IN CDS FOUND ARMING SWITCH FAULT. REF FIM 27-50-00-810-805. REMOVED AND REPLACED FLAP CONTROL UNIT IAW AMM 27-51-01-000-801 AND 27-51-01-400-801. FUNCTIONAL TEST GOOD. FLAP POWER CAUTION NO LONGER ILLUMINATED. CDS FAULT CLEARED AND DID NOT RETURN. NO FURTHER DEFECTS NOTED. RETURNED TO SERVICE.