As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE INSPECTING RUDDER ON ANNUAL INSPECTION THE INSPECTOR FOUND LOOSENESS AT THE RUDDER TORQUE TUBE ATTACH BOLTS. TEARDOWN INSPECTION SHOWED BOLT HOLES OVERSIZE AND ELONGATED. NEW PARTS INSTALLED BECAUSE (AN 174) BOLTS WERE LARGEST SIZE BOLTS PERMITTED. MFG SB REFERS TO THIS PROBLEM.