As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLOOR SUPPORT AT STA 950 RBL 24 HAS AREAS OF CORROSION DOT: L920. GROUNDED - YES. REMOVED CORROSION FROM INTERCOSTAL AT STA 950 RBL 24 ORIG MAT .080, REMOVED MAT .042 AND REMAINING MAT .038. FOUND TO BE OUT OF LIMITS. PER B737-900ER SRM 53-70-15-1A-1. REMOVED AND INSTALLED NEW INTERCOSTAL AND REINSTALLED FLOOR SUPPORT 2 (EA). IAW B737-900 ER SRM 51-40-02 AND BAC DWG #147A5650 REV: B SHT 86 PO: 1087814.6 TOOL # T8224I CAL 26APR2024 HAECO DOT REMOVED.