As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO COMPARTMENT FLOOR SUPPORT RAIL HAS MULTIPLE AREAS OF CORROSION STA. 727I+8 TO 767 RBL 22. GROUNDED - YES. CORROSION REMOVED ON AFT CARGO COMP FLOOR SUPPORT RAIL IAW B737-900ER SRM 51-10-02. ORIGINAL THICKNESS IS .040 IAW B737-900 SRM 53-60-53-01-2. MULTI- PLE READINGS OF REMAINING THICKNESS OF .010 OUT OF LIMITS IAW B737-900 SRM 53-00-53-1A-2. REMOVED & REPLACED DAMAGED SECTION IAW B737-900 SRM 53-00-53-2R-5 & BAC DWG 146A7500 REV C FROM STA 727IT8-767RBL 22.