As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN FOR SI CHECK, MAINTENANCE FOUND CORROSION (C55-395-10-00-01) ON BOTH LT AND RT FWD SHEAR TIES INSIDE VERTICAL FIN TUNNEL AT FIN STA 87.0 UPPER END OF RIBS NR 5. MECHANICALLY REMOVED CORROSION. REWORK OUT-OF-LIMITS IAW SRM 55-50-00. REMOVED AND REPLACED SHEAR TIES IAW SRM 51-30-2.