As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON EXTERNAL FUSELAGE SKIN AT NUTPLATE LOCATIONS FOR PANEL 192BB BETWEEN STR 20L AND STR 27. C-CHECK RO 10/4/2020. REMOVED CORRSION ON EXT FUSELAGE SKIN AT NUTPLATE LOCATION FOR PANEL 191BB STGR 27 AND 20L. REMAINING MATERIAL THICKNESS FOUND TO BE OUT OF LIMITS. COMPLIED WITH MHIRJ REO. PRESSURE LEAK CHECK GOOD.