As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PHX - FLT 460 - OAK-LAS - A VIBRATION WAS FELT DURING CLIMB, CRUISE AND DESCENT. THE VIBRATION SEEMED LIKE AIRFRAME, CREW TRIED INCREASING AND DECREASING ACFT AND ENGINE SPEED, BUT UNABLE TO DETERMINE. ACFT LANDED WITHOUT FURTHER PROBLEMS. MX REPLACED NR 6 SPOILER ACTUATOR PER AWA TASK CARD R3M27021. ACFT RETURNED TO SERVICE. (W)