As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 670 CORROSION ON LOWER/UPPER SURFACE OF STRINGER RBL 2.90 BTW STA 1340 TO STA 1445 AT AFT CARGO COMPARTMENT. CORRECTIVE ACTION: SUMMARY OF NRC S/N 00516, STRINGER BTW STA 1343.5 - STA 1445.5 AND RBL 2.90 WAS REPLACED PER B757-200 SRM. (0104599)