As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(B757-53-3-0556) CORROSION ON MAIN CABIN LT CREASE BEAM INNER CHORD UPPER SURFACE STA 732-735 AS MARKED 50-032. REF N/R 0071663 BLENDED AND CHECK LIMITS TO LT CREASE BEAM INNER SHORD IN MAIN CABIN STA 732-735; L=3.5" W=1.0" A=.014". OUT OF LIMITS IAW SRM 53-30-15 AD1 FIG 101, DETAIL IV. REMOVED AND REPLACED INNER CHORD P/N: 19-5400-3-0016, BATCH 003535037, PO NO TUA000026 2 IAW DRAWING 143N8322.