As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(LOG 0871783) CORROSION ON FLOOR SUPPORT BTW STA 291 RBL 43, ORIGINAL THICKNESS IS 0.300 IN AND MINIMUM REMAINING THICKNESS IS 0.250IN; THEREFORE IS OUT OF LIMITS PER B737-800 SRM 53-10-51-A-1. FLOOR SUPPORT BTW STA 291 RBL 43 WAS REPLACED PER B737-800 SRM 51-40-02-0G.