As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLOOR BEAM @ STA 947.5 LBL 54 HAS AREA OF CORROSION. GROUNDED - YES. EVALUATED CORROSION-CORROSION IS OUT OF LIMITS DUE TO PROXIMITY TO A HARD POINT IAW B737-900ER SRM 53-70-51-1A-1. ACCOMPLISHED T-CAP REPAIR IAW B737-900ER SRM 53-70-51-2R-5. REMOVED AND REINSTALLED ADJACENT FLOOR STRUCTURE AS REQUIRED IAW B737-900ER SRM 51-40-02. REF BAC OWG'S 147A8501 AND 147A5650.