What was found
MCN - C4 - MAJOR REPAIR - EXFOLIATION CORROSION ON WEB BETWEEN BS 1320 TO BS 1350, S17L. REPLACED WEB BETWEEN BS 1320 TO BS 1350, S17L IAW B757 SRM 51-40-02.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
MCN - C4 - MAJOR REPAIR - EXFOLIATION CORROSION ON WEB BETWEEN BS 1320 TO BS 1350, S17L. REPLACED WEB BETWEEN BS 1320 TO BS 1350, S17L IAW B757 SRM 51-40-02.