As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT SCHEDULED ROUTINE MAINTENANCE, VERTICAL FIN AFT RIGHT SPAR ANGLE 3.0 THRU 4.5 INCHES BELOW UPPER HINGE BRACKET SHOWS SIGN OF EXFOLIATION. REMOVED CORRODED MATERIAL, BLENDED AREA AND INSTALLED REINFORCEMENT DOUBLER IN ACCORDANCE WITH FAA APPROVED DATA CONTAINED IN DRAWING NUMBER 060302 DER NUMBER DERT 510305-CE.