What was found
FUSELAGE TAIL SECTION STR 5RT AFT OF FR 83, EXTERNAL SKIN HAS CORROSION ABOUT 4 SQ INCHES. CLEANED AREA OF FUSELAGE TAIL SECTION STR 5R AFT OF FR 83 IAW AMM 12-21-12. UPON FURTHER INSP, NO CORROSION NOTED. REPROTECTED AREA IAW SRM 51-75-10, PG 225, PARA 10C AND PG 204, PARA 4.