As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN INTERCOSTAL P/N 147A5676-13 STA 947.5 TO 967 CORRODED. GROUNDED - YES. CORROSION IS AROUND SEVERAL FASTENERS HOLE FOUND OUT OF LIMITS ALLOWABLE DAMAGE IAW B737-800 SRM 53-70-51-1A-1, 100% MAT LOSS. DRILLED NEW SUPPORT IAW B737-800 SRM 51-40-05 AN BAC DWG. 148A5650 REV. C, SUPPORT ON N/R 42897 CUST CARD NO G1995897.