As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO DOOR THRESHOLD, BS 1380 - 1440 HAS SEVEN BROKEN NUTPLATES AND ONE LOCK FASTENER MISSING NUT. FOUND THRESHOLD STRUCTURE TO HAVE CORROSION 100% THROUGH MATERIAL AND CRACKED. REMOVED & REPLACED THRESHOLD STRUCTURE FROM BS 1380 - 1440 AND INSTALLED NEW NUTPLATES IAW SRM 51-40-02 & DWG 146N5390, REV C.