As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER PUSHBACK, DURING FLIGHT CONTROL CHECK, FLIGHT CREW OBSERVED THAT LEFTHAND OUTBOARD AILERON DID NOT MOVE WITH FLAPS DOWN, RETURNED TO BLOCKS. CLEANED ELECTRICAL PLUG ON AILERON LOCKOUT ACTUATOR, OPERATIONAL CHECK SATISFACTORY PER MM 27-00-00.