As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB AIRCRAFT STARTED A HIGH RATE OF VIBRATION WHICH WAS FELT UNDER PILOT'S SEAT AND FEET, ALSO FELT THROUGH OUT CABIN BY F/A. REMOVED AND REPLACED BOTH LT AND RT ELEVATOR TABS. REMOVED AND REPLACED NR 1 ENG IDG. REMOVED AND REPLACED NR 2 ENG MOUNT HARDWARE. COMPLIED WITH AIRFRAME VIBRATION CONDITION INSP, OPS CHECK GOOD PER MM.