As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO DOOR CUT OUT LOWER CLOSE OUT PANEL AT FRAME 65 AT LOWER FWD CORNER HAS CORROSION AROUND FASTENER HOLES- BLENDED CORROSION ON RIB AT FR 65, RIB WAS FOUND TO BE OUT OF LIMITS. REMOVED DEFECTIVE RIB, LOCATED AND DRILLED UP NEW RIB. INSTALLED NEW RIB.