As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNCOMMANDED FLAPS MOVEMENT FROM 8 TO 0 AT 5000 FEET. THE CREW CONTINUED TO DESTINATION AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT, REMOVED AND REPLACED THE SKEW DETECTION UNIT AND PERFORMED CHECKS IAW THE AMM. THE AIRCRAFT WAS RELEASED FOR SERVICE.