As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A HEAVY MAINTENANCE CHECK, THE FLOOR SUPPORT AT STATION 1986 LBL 2 TO 18 HAS ELONGATED HOLES ON THE FORWARD LOWER SIDE OF THE LIP GROUND DOWN. MATERIAL ID AND FABRICATION FOR FLOOR SUPPORT IAW DC10 SRM 531600 VOL 3. ALODINED AND PRIMED IAW DC10 SRM 512101 VOL 2. INSTALLED IAW DC10 SRM 518501 VOL 2.