What was found
DURING "C" CHECK , AFT CARGO COMPARTMENT BILGE AREA FRAME (STA 1996) LOWER CHORD CORRODED AT LBL 15 TO RBL 15 AS MARKED. NON-ROUTINE NR 0610, AFT CARGO COMPARTMENT BILGE AREA FRAME (STA 1996) LOWER CHORD, LBL 15 TO RBL 15 CORROSION, REMOVED AND REPROTECTED IAW SRM 51-21-01 VOLUME II REVISION 96 FOUND EXCEED LIMIT IAW SRM 53-00-01 VOLUME I REVISION 96, ORIGINAL THICKNESS 0.071" MATERIAL REMOVED: 0.053". FABRICATED REPAIR FILLER AND ANGLE IAW SRM 53-00-01 FIGURE & VOLUME I REVISION 96. REPAIR PARTS INSTALLED IAW SRM 51-33-01 VOLUME II AND 53-00-01 VOLUME II AND 53-00-01 FIGURE & VOLUME I REVISION 96.