As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLAPS FAILED TO EXTEND. FOUND AUTOPILOT FOLLOW-UP IN LEFT WING SEIZED IN THE AFT POSITION ALLOWING THE ACTUATING WIRE TO MOVE OVER FLAP MICROSWITCH AND NOT ALLOWING FLAP TO EXTEND. LUBRICATED SHAFT OF FOLLOW-UP AND SYSTEM OPERATES CORRECTLY. NEW SERVO FOLLOW-UP ON ORDER.