As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB EXPERIENCED NOTICABLE OSCILLATIONS COMING FROM THE TAIL THAT DISSIPATED AT CRUISE. ALL ENG INDICATIONS NORMAL VERTICAL STABILIZER ACCESS PANELS AND RH ELEVATOR PCU PANLES CLOSED IAW AMM 27-31-05 REV149. FOUND FAULT DURING YAW DAMPER SYSTEM BITE PROCEDURE IAW FIM 21-21 FAULT TREE 804 REV149. REPLACED LEFT SUPPRESSION ACCELEROMETER M10734 IAW AMM 22-21-05/401 REV149.