As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CABIN, FLOOR STRUCTURE, R/H T-CAP STA 947 RBL 52 CORRODED AROUND HARD POINT FITTING. PERFORMED HALF T-CAP REPAIR ON THE AFT CABIN FLOOR STRUCTURE R/H AT STA. 947 RBL52 & RESTORED PROTECTIVE COATINGS IAW B737-900 SRM 53-70-51-2R-5. (LOG 1638686 - AIRCRAFT WAS GROUNDED).