As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT CREW REPORTED A/C DISPLAYED LATERAL WOBBLE (RIGHT) DURING CLIMB ANYTIME RUDDER TRIM >.3 UNITS LEFT, A/S >270. AIRCRAFT RETURNED TO DEN AND LANDED WITHOUT INCIDENT. REPLACED NO. 1 FAC AND OPERATIONAL CHECK FLIGHT SHOWED NO VIBRATION. AIRCRAFT RETURNED TO SERVICE.