As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB, NR 2 ENGINE VIBRATION REACHED AMBER AT 4.0 . ENGINE VIBRATION PEAKED AT 4.0 ON APPROACH AT 40% N1 WITH NOTICEABLE AIRFRAME VIBRATION. PERFORMED N1 VIBRATION WORKSCOPE ON RT ENGINE IAW MM 72-00-00 SPEC. PROC. 097. REMOVED AND REPLACED ALL FAN BLADE RETAINING PINS AND BUMPERS, AND NULLED AFT SPINNER BALANCE WEIGHTS IAW MM. VIBRATION CHECKED GOOD WITH 0.5 MAX INDICATED