As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFTER TAKE-OFF DURING FLAP RETRACTION, BOTH IB AND OB FLAPS STOPPED BETWEEN FLAP POSITION 5 AND 2. RECTIFICATION AFTER EXTENSIVE TROUBLESHOOTING CARRIED OUT. BOTH FLAP CONTROL VALVES WERE REPLACED. THE AIRCRAFT WAS TEST FLOWN WITHOUT ANY FURTHER PROBLEMS.