As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(LOG 0403864) CORROSION ON INTERNAL PRODUCTION DOUBLER BS 757 AND BS 797 BTW STRINGER 27LH-27RH AT AFT CARGO COMPARTMENT. INTERNAL PRODUCTION DOUBLER BS 757 AND BS 797 BTW STRINGER 27LH-27RH AT AFT CARGO COMPARTMENT WERE REPAIRED PER ER/A 618489-14 REV. ORIGINAL .