What was found
AFT CARGO DOORWAY SILL PLATE HAS AREAS OF CORROSION AND BARE METAL. WL 157 RBL 20 STA 807 - STA 847. / REMOVED CORROSION ON AFT CARGO SILL PLATE STA 801 - 847 RBL TO IAW SRM 51-10-02-0G-0 CONFIRMED WITH 10X MAG. MEASURED MATERIAL LOSS ORIGINAL (T) .045' REMAINING (T) .036' LOSS OF .009' OUT OF LIMITS IAW SRM 53-60-15-1A-1. REMOVED AND REPLACED SILL PLATE IAW SRM 51-40-02 AND BOEING DWG 146A8123 REV -. P/N 146A8123-25 WN8886.