As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 4632, CREW REPORTED STABILIZER VIBRATION DURING CLIMB. AIRCRAFT REMOVED FROM SERVICE. PERFORMED W/C 12-20-01 VIBRATION AND FOUND RUDDER ROD END BEARING GREASE COVER AND CORRODED. REPLACED ROD END IAW EO EM-55AD-201R6. ALL CHECKS GOOD AND NR 8194; AIRCRAFT RETURNED TO SERVICE.