As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L/H AFT CABIN AT STA 992 FLOOR SUPPORT ANGLE STRUCTURE UPPER SURFACE HAS CORROSION GROUNDED - YES. REMOVED CORROSION, 100% MATERIAL LOSS. OUT OF LIMITS IAW B737-800 SRM 53-70-51-1A-1. REMOVED FLOOR SUPPORT IAW B737-800 SRM 51-40-02. DRILLED TO FIT NEW FLOOR SUPPORT IAW B737-800 SRM 51-40-05 AND BAC DWG 147A5700 REV- INSTALLED FLOOR SUPPORT IAW B737-800 SRM 51-40-02 AND BAC DWG 147A5700 REV-