As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) PILOT REPORTED FLAP DRIVE CAUTION ILLUMINED AFTER SELECTION OF FLAP AND REMAINED ILLUMINATED AFTER FLAP MOVEMENT. MAINTENANCE INSPECTION REVEALED LT INBD FLAP ACTUATOR BALL SCREW WITH SHARP, ROUGH EDGES OBSERVED THE LENGTH OF BALL SCREW.