What was found
AFT CARGO COMPARTMENT UNDER FLOOR CORROSION PREVENTION & CONTROL PROGRAM (CPCP) INSPECTION. AFT CARGO BAY LT STRINGER 25 AT BS 847 HAS HEAVILY CORRODED BUILD UP FORWAD OF BULKHEAD. CLEANED & INSPECTED S25L, BS 807-847. REMOVED FASTENERS FROM SHEAR TIES AT BS 827-847 BETWEEN S24L - S25L. REMOVED CORRODED STRINGER S25L IAW SRM 53-00-03. REMOVED SHEAR TIE BS 867, S24 - 25L. ACCOMPLISHED HFEC INSP. NO DEFECTS NOTED. DURING STEPS 5 THRU 7 HFEC INSP. FOUND HEAVY CORROSION AT BS 792 S25L AND BULGING ON EXTERNAL SKIN AT SAME LOCATION. REMOVED CORRODED STRINGER FROM BS 776 - 816. REMOVED SHEAR TIE S24 & 25L. PERFORMED HFEC AT TRIMMED AREA. NO DEFECTS NOTED NTM PART 6 51-00-00 PROCEDURE 23. FABRICATED REPAIR SPLICE