As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE: C. VERTICAL FIN TORQUE BOX RT HORIZONTAL CHORD BS 1342 FIN STA ZERO IS CORRODED BEYOND LIMITS. CUT OUT DAMAGED AREA, FABRICATED REPAIR PARTS, TREATED, PRIMED AND INSTALLED PER DHC SK-954-576 REF. ENRG FILE NR 727-55-0339.