As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLOOR PANEL 141A5810-763 HAS CORRODED AND MISSING INSERTS. GROUNDED - YES. UPON FURTHER EVALAUTION OF FLOOR PANEL 141A5810-763, FOUND SEVERAL AREAS OF FACESHEET WITH DAMAGED FIBERS THAT REQUIRE REPAIR IAW ASA B737-900 SRM 53-00-50-0I-1; SRM 53-00-50-1A-1. REPAIRED DAMAGED AREAS OF FACESHEET IAW ASA B737-900 SRM 53-00-50-2R-0; SRM 53-00-50-2R-2. INSTALLED 21 NEW INSERTS ON FLOORPANEL IAW ASA B737-900 SRM 53-21-51-07B; SRM 53-00-50-2R-0.