As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE. FOUND EXFOLIATION CORROSION WITH POPPED RIVET HEAD ON RUDDER 138.5 INCHES FROM TRAILING EDGE OF RUDDER ON APEX STRIP. AREA OF CORROSION WAS REMOVED AND REPLACEMENT PART WAS INSTALLED WITH SPLICE REPAIR, REF SRM 55-41-19-300-006 FIGURE 001 C1.