As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE FOUND CORROSION THE SHEAR TIE AT FRAME 16 STR 27-28R. REMOVED CORROSION AND FOUND THE SHEAR TIE TO BE OUT OF LIMITS. REMOVED THE SHEAR TIE, DRILLED A NEW SHEAR TIE AND INSTALLED IAW SRM 51-41-01; 51-41-02; 51-23-06.