As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
YYZ INFLIGHT T1562/28SEP - DURING APPROACH RECEIVED FLAP ASYMMETRY INDICATION ON TRAINING EDGE FLAP SYSTEM. LANDED WITH FLAPS UP. LANDED YYZ WITHOUT INCIDENT. REPLACED LEFT INBOARD TRAINING EDGE INPUT ASSEMBLY, FLAP SKEW DETECTION SENSOR AND FLAP SKEW DETECTION SENSOR ASSEMBLY. SYSTEM GROUND CHECKED NORMAL OPERATION.