As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFTER SELECTING THE FLAPS TO 8 DEGREE, THE FLAP FAIL CAUTION MSG APPEARED. FLAPS REMAINED AT 0 DEGREE.REPLACED THE LEFT EPSU REPLACED THE RIGHT BPSU FOUND RIGHT FLEXDRIVE SEVERAL STRANDS WERE BROKEN & TWISTED AROUND THE FLEX DRIVE.