What was found
FLOORBEAM FR 17 HAS CORROSION ON TOP BEAM FLANGE BETWEEN LT AND RT SEAT TRACKS; LBL 12.5 AND RBL 12.5. REMOVED DAMAGED AREA ON FLOORBEAM FR 17 TOP BEAM FLANGE BETWEEN LT AND RT SEAT TRACKS; LBL 12.5 AND RBL 12.5 FABRICATED, LOCATED, DRILLED, AND APPLIED ALODINE TO INNER DOUBLER, SHIM, AND FILLER FOR FLOORBEAM FR 17 TOP BEAM FLANGE BETWEEN LT AND RT SEAT TRACKS; LBL 12.5 AND RBL 12.5 REF: SRM 53-00-10 REPAIR 03 HFEC INSPECTED CUTOUT PERFORMED IN WIP NR 5 IN ACCORDANCE WITH NTM PT6, 51-06-00-250-801-A. NO DEFECTS NOTED. INSTALLED INNER DOUBLER, SHIM, AND FILLER FOR FLOORBEAM FR 17 TOP BEAM FLANGE BETWEEN LT AND RT SEAT TRACKS; LBL 12.5 AND RBL 12.5 REPAIR. APPLIED TOPCOAT AND CIC TO FLOORBEAM FR 17 TOP BEAM FLANGE BETWEEN LT AND RT SEAT TRACKS; LBL 12.5 AND RBL 12.5 REPAIR REF: SRM 53-00-10 REPAIR 03. SEE W/O H6609 SN 409 FOR WORK DETAILS. AIRCRAFT REMAINS IN HEAVY CHECK BNA.