What was found
CREW REPORTED VIA ACARS, AIRFRAME VIBRATION EXPERIENCED ON CLIMBOUT. ACCOMPLISHED AMM 27-34-00 -200-001-A, FOUND ONE SERVO CONTROL OUT OF LIMITS (34CE1). REPLACED SERVO IAW MM 27-34-51-000-001-A AND MM 27-34-51-400-001-A. OPS CHECKED GOOD.