As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN C-1 CARGO PIT, FS 943 BULKHEAD HAS FLOOR SUPPORT EXTRUSION CORRODED. REMOVED DISCREPANT EXTRUSION IAW L1011 SRM 51-40-01. INSTALLED REPAIR ANGLE IAW SRM 51-40-01. FOUND DURING SCHEDULED C-CHECK AND CPCP WORK CARD ACCOMPLISHMENT AT AIA. MAINTENANCE FACILITY IN OSCODA, MI. WORK ORDER NR 106-187, NON ROUTINE CARD NR 32416, CPCP TASK NR C53-120-04-01.