As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN FLOORBEAM INTERCOSTAL IS CORRODED ON THE UPPER SURFACE AT STA 1173; FROM FRAME 14 - 14A, LBL 197 CM. REMOVED CORROSION IAW SRM 51-74-10. ORIGINAL THICKNESS 0.078 IAW SRM 51-30-20. REMAINING THICKNESS IS 0.074. MATERIAL LOSS 0.004 FOUND IN LIMITS IAW SRM 53-10-10, PG 106. ALODINED AND PRIMED IAW SRM 51-23-10 AND SRM 51-21-10. APPLIED TOP COAT IAW SRM 51-23-10.