As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECT FOR AND TREAT AS NEEDED ANY CORROSION UNDER THE REAR FUSELAGE II NAMEPLATES. ON LOWER REAR FUSE II LH OUTB RIB, BTW FR 79-80 RIB DAMAGED. SPLICE REPAIR ON LOWER REAR FUSE II LH OUTB RIB, BTW FR 79-80 REPAIRED. AT FR 78 NAMEPLATES REMOVED FOR INVESTIGATION AND SKIN FOUND CORRODED OUT OF LIMIT. CORROSION ON SKIN REPAIRED WITH DOUBLER AND NAMEPLATES RE-INSTALLED. CORROSION LEVEL 1