As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHILE EXTENDING THE FLAPS FOR LUBRICATING, A CHATTERING NOISE WAS HEARD, FOLLOWED BY A FLAP FAILURE. INVESTIGATION REVEALED THE L/H INBOARD AND RT OUTBOARD FLAP ACTUATORS TO BE EXTREMLY HOT AND BINDING. THE ACTUATORS WERE REPLACED AND RIGGED, AND THE AIRCRAFT RETURNED TO SERVICE.