As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, FLAP DIASGREEMENT, LEFT OUTBOARD PAIR DID NOT RETRACT. CYCLED FLAPS BUT THEY WOULD NOT RESET. RETURNED TO MRY. CHECKED ALL FOUR FLAP BEARINGS AND REMOVED AND CLEANED CANNON PLUG. OPS CHECKED FOUR TIMES AND COULD NOT DUPLICATE.