As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FORMED SECTION OF CABIN FLOOR SUPPORT CORRODED ON LOWER SURFACE UNDER NUTPLATES FS 350-365 RBL 46. REMOVED CORROSION, FOUND TO BE OUT OF LIMITS IAW SRM 53-00-04 FIG 101 DETAIL LL. INSTALLED NEW FLOOR SUPPORT IAW SRM 51-40-02. CLASSIFIED AS CATEGORY "A" MAJOR REPAIR.