As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) OPERATOR REPORTED THAT THE FLAP DRIVE TORQUE TUBE BECAME DETACHED FROM THE OUTBOARD SIDE OF THE NR 3 FLAP SCREW JACK PREVENTING RETRACTION OF THE FLAPS. INSPECTION REVEALED THAT THE TORQUE TUBE TO SCREW JACKPOINT HAD NOT BEEN COMPLETELY ENGAGED.