As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLOOR SUPPORT 147A5710-16 HAS CORROSION. GROUNDED - YES. FLOOR SUPPORT HAS 100% MATERIAL LOSS IS 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 A. INSTALLED NEW FLOOR SUPPORT IAW B737-800 SRM 51-40-02 AND BAC DWG 147A5700 REV A.