As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ACFT VIBRATION CLIMBING-THRU FL 290 AT.80 MACH, SLOWED .78 M. WENT AWAY. SAMC TEXT: THIS AIRCRAFT HAS HISTORY OF REPORTED VIBRATION & CREW REQUESTED TO COMPLETE VIBRATION CHECK LIST & LEAVE WITH LOG BOOK TOMC ALLHOFF -ACCOMPLISHED ADJUSTMENT OF ELEVATOR PCU SERVOS USING MM 27-34-00 FOUND ELEVATORS NOT RIGGED PROPERLY DUE TO TRIANGLE POSITION BEING OFF.