What was found
CORROSION ON STRINGER 41R, IN THE FWD CARGO BILGE AREA. APPROXIMATLY 6 INCHES AFT OF FRAME 30. AFTER BLENDING OF THE STRINGER, FOUND OUT OF LIMITS. REMOVED THE DAMAGED STRINGER SECTION, HFEC AND ROTO PROBED PERFORMED. NO DEFECTS NOTED. REPLACED THE STRINGER SECTION, FABRICATED A COUPLING AND PREFORMED REPAIR IAW SRM 53-21-13-300-003, ER 510 0R01017, REV E, NTM 51-10-01, 51-10-02, AND SRM 53-21-13.