As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT SERVICE DOOR BETWEEN BS 669.3 - 697.6 S23R HAS EVIDENCE OF CORROSION. REMOVED CORROSION IAW SRM'S 53-40-31, PG 201, 53-10-31 PAR 6B. C/W ET INSP & UT THICKNESS TEST IAW NDTM PT1 51-00-06 & 51-00-04. NO DEFECTS NOTED. REPAIRED IAW IAW SRM'S 51-21-10, PAR 6D, 51-25-10, PAR 5G.