As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN LEFT AFT DOOR SILL FWD GIRT BAR MATING SURFACE HAS CORROSION AROUND FASTENER HOLES. BLENDED AREA IAW SRM 51-74-00. FOUND TO BE OUT OF LIMITS IAW SRM 53-41-14, FIG 101. REMOVED DOOR SILL IAW SRM 51-42-11. INSTALLED NEW SILL IAW SRM 51-42-11 AND DWG D53480505.