What was found
FWD CARGO COMPARTMENT, LOWER SILL WEB IS CORRODED ON LOWER SURFACE. ACFT GROUNDED. REMOVED CORROSION AND FOUND BEYOND ALLOWABLE LIMITS IAW SRM 53-30-15-1A-1, FIG 103. ORIGINAL MATERIAL THICKNESS WAS 0.045" IAW SRM 53-30-15-0I-1, TABLE 4, MATERIAL THICKNESS REMOVED IS 0.005", MATERIAL THICKNESS REMAINING IS 0.040" MAX ALLOWABLE DEPTH IS 0.10" IAW SRM 53-30-15 1A-1, FIG 103. REPLACED CORRODED WEB IAW SRM 5-10-02, PARA 9 AND BAC DWG 143A8330, REV A 143A8120.