What was found
CABIN FLOOR BOARD SUPORT ANGLE LBL 64 STA 597 TO STA 639 IS CORRODED ON UPPER SURFACE. GROUNDED - YES. REPAIRED CREASE BEAM INNER CHORD AT STA 639 IAW BOEING 737-700 SRM 53-40-13-2R-1 CAT B REPAIR INSPECTION THRESHOLD 36,000 FLIGHT CYCLES OR 12 YEARS WHICHEVER COMES FIRST. REPEAT INPSECTIONS 36,000 FLIGHT CYCLES OR 10 YEARS WHICHEVER COMES FIRST: METHOD DVI. ALL OTHER SPOTS OF CORROSION FOUND IN LIMITS IAW BOEING 737-700 SRM 53-40-13-1A-1. INSPECTION REQUIREMENTS IAW BOEING 737-700 SRM 53-40-13-2R-1 TABLE 204W: 1 O: .050 R: .038 L: 1 D: .012.