As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) IN CLIMB OUT AFTER TAKEOFF PILOTS REPORTED AN INTERMITTENT VIBRATION. AIRCRAFT RETURNED TO LAND. VIBRATION FOUND TO BE CAUSED BY LOOSE FLAP FAIRINGS. BOTH INBOARD FLAP FAIRINGS WERE REMOVED AS PER CONFIGURATION DEVIATION LIST (CDL) 57-1.