As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: WHILE TROUBLESHOOTING CHRONIC FLAP VIBRATION MAINTENANCE FOUND THE RIGHT WING POSITION 1 FLAP TRACK CARRIAGE ASSEMBLY WAS WORN. MAINTENANCE REPAIRED THE CARRIAGE ASSEMBLY PER CMM 27-54-43 AND AMM 27-54-46.