As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO FLOOR SUPPORT STA. 771 LBL 12.50 IS CORRODED. GROUNDED - YES. REMOVED CORROSION AND CHECKED LIMITS FOUND SUPPORT OUT OF LIMITS IAW B737-900ER SRM 53-00-53-1A-2 REPAIRED SUPPORT IAW B737-900ER SRM 53-00-53-2R-2W=0.3 O=0.063 R 0.050 L-1.0 D 0.013.