As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FLIGHT CREW REPORTED RECEIVING AN INTERMITTENT CAUTION LIGHT FLAP ASYMMETRY ANNUNCIATOR IN ALL PHASES OF FLIGHT. YELLOW MASTER CAUTION ASSOCIATED. THE MAINTENANCE TEAM TROUBLESHOT AND DETERMINED THAT THE LEFT FLAP FOLLOW UP SWITCH WAS DEFECTIVE. THE DEFECTIVE SWITCH WAS REMOVED AND AN OVERHAULED UNIT WAS INSTALLED AND ADJUSTED. OPS CHECKS WERE SATISFACTORY THE AIRCRAFT WAS THEN RETURNED TO SERVICE