As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REPOSITION FLIGHT 201, PHX-SMF: AIR TURNBACK FULL RIGHT RUDDER TRIM AND ADDITIONAL RIGHT RUDDER REQUIRED TO MAINTAIN STRAIGHT FLIGHT. RETURNED AIRCRAFT TO PHX. NO EMERGENCY WAS DECLARED. CORRECTIVE ACTION: MAINTENANCE INSPECTED RUDDER TRIM RIGGING. FOUND TRIM POINTER OUT OF TRACK. CORRECTED INDICATOR. RUDDER TRIM JACKSCREW DID NOT HAVE EQUAL THROW. CORRECTED JACKSCREW. GROUND TAXI GOOD.