As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NON ROUTINE NR N0196. DURING C4 S1 CHECK INSP, NOTED CORROSION ON THE R2 DOOR THRESHOLD AROUND 2 FASTENERS LOCATED INBD OF THE AFT GIRT BAR LATCH. MX REMOVED LEVEL 1 CORROSION, R & R THRESHOLD PLATE IAW SRM 53-41-14 / 51-21-11 / 54-75-12.