As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT R/H CABIN STA 947 FLOOR STRUCTURE HAS CORROSION. GROUNDED - YES. REMOVED CORROSION IAW B737-900ER SRM 51-10-02. FOUND TO BE 100% MAT LOSS OUT OF LIMITS. REMOVED INTERCOSTAL BTWN STA 947.5-967 IAW B737-900ER SRM 51-40-02. LOCATED & DRILLED NEW PART IAW B737-900ER SRM 51-40-05. INSTALLED NEW PART IAW B737-900ER SRM 51-40-02. REF BOEING DWG 147A5650 REV B. P/O 1107979.1.