As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CTR WING AREA CORROSION ON FLOOR SUPPORT STA 1219 RBL 78-106 (MARKED NR 1). MAIN DECK FLOOR SUPPORT AT STA 1219 RBL78-106 (PNR WSP0711-509). REMOVED AND REPLACED WITH NEW FLOOR SUPPORT, IAW MD10-10 SRM 51-35-01 VOL 2 (REFER JPF FOR FABRICATION OF FLOOR SUPPORT) AND MATING SURFACE FAY SEAL ACCOMPLISHED IAW SRM 51-41-01 FIG 3 PG19.