As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT 8000 FT AND BELOW EXPERIENCED SEVERAL LOUD BUMPS WHICH SHOOK. THE AIRCRAFT SOURCE SEEMED TO BE FROM RIGHT, SIDE SLIGHT YAW (NOT IN PEDALS). REMOVED AND REPLACED NR 2 ENGINE VBV MOTOR AND BLEED VALVE, PER MM. REMOVED AND REPLACED NR 2 ENGINE MEC AND CIT SENSOR PER MM.