As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING TAKE OFF REPORTED THAT THE FLAPS WOULD NOT RETRACT FROM 17 DEGREES TO ZERO DEGREES DURING AIRCRAFT CLEAN UP. THE FLAPS REMAINED AT 17 DEGREES. THE CREW REQUESTED RETURN TO ORIGIN. THE AIRCRAFT LANDED SAFELY WITHOUT FURTHER INCIDENT.