As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: 45 PERCENT YAW TRIM LEFT REQ. TO CENTER YAW INDICATION IN FLIGHT. T/S IAW FIM 27-20-00-810-806-A. FOUND TRIM OF RUDDER TO BE 2.5 DEG. LEFT WITH SURFACE CENTERED ON TAILCONE. C/W RUDDER RIGGING IAW AMM 27-20-00-820-801-A.TO NULL OUT RUDDER TRIM. ALL FLIGHT CONTROL SURFACES CHECK NORMAL IAW AMM 27-20-00.