As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT ALTITUDE FL280 CREW NOTICED AN UNUSUAL VIBRATION OF AIRCRAFT. ALL ENGINES / INSTRUMENTS INDICATED NORMALLY. ELECTED TO DIVERT TO SDF. VIBRATION / SHUTTER CONTINUED DURING TAXI IN. ACN RELEASED FOR SERVICE PER MEL/CDL: 22-06-A CATEGORY: C EXPIRATION: 18NOV03 MEL 22-06-A: UPPER YAW DAMPER INOP. FOUND UPPER RUDDER SHUTTERING BACK AND FORTH. TURNED UPPER YAW DAMPER OFF SHUTTERING STOP. DEFERRED UPPER YAW DAMPER. SWAPPED YAW DAMPER COUPLERS, NO HELP RETURNED TO ORIGINAL POSITIONS. REF B727-200 MM 22-11-131-4, NEEDS CONTINUED T/S.