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 AFT CARGO BAY AFT SIDE OF FRAME 77, STRINGER 29R HAS CORROSION. REMOVED CORRODED SHEAR TIE. FABRICATED NEW SHEAR TIE. PERFORMED HFEC INSPECTION OF FABRICATED PART. TREATED PRIMED PAINTED AND INSTALLED NEW SHEAR TIE COMPLIED WITH TASK E15-813-01.