As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA - FLIGHT 2339 - DURING FLAP RETRACTION AFTER DEPARTURE, THE (FLAP POWER) CAUTION LIGHT ILLUMINATED AS THE FLAP HANDLE WAS PLACED AT ZERO. THE CHECK LIST PROCEDURE WAS ACCOMPLISHED BUT THE LIGHT REMAINED ON. MAINTENANCE INSPECTED THE AIRCRAFT AND INTERROGATED THE CDS AND FOUND NO FAULTS. THE SYSTEM WAS RESET AND THE OPERATIONAL CHECKS WERE GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.