What was found
DURING FLAPS EXTENSION TO POSITION 5, A STEADY VIBRATION FELT IN BOTH CONTROL COLUMNS. REMOVED AND REPLACED LT WING INBOARD FORE FLAP PER MM.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING FLAPS EXTENSION TO POSITION 5, A STEADY VIBRATION FELT IN BOTH CONTROL COLUMNS. REMOVED AND REPLACED LT WING INBOARD FORE FLAP PER MM.