As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN FLOOR PANEL 1174 HAS CORROSION ON 3 EA LOWER SURFACE AREAS WHERE MOUNT SHIMS ARE MISSING AND CENTER SUPPORT CHANNEL IS CRACKED AT ENDS AND HAS 3 EA PUNCTURES. CORROSION FOUND TO BE OUT OF LIMITS, FABRICATED FLOOR PANEL AND CENTER SUPPORT CHANNEL AND INSTALLED IAW DC9/MD80 SRM 51-30 DURING HMV.