What was found
DURING B-CHECK INSPECTION, RIGHT HAND OVERWING DOOR R-3, AFT LOWER CORNER (AT FLOOR LEVEL) STA 1305 EVIDENCE OF CORROSION UNDER DOOR SILL PLATE. [08-07-07] SILL PLATE SUPPORT CHANNEL FOUND CORRODED BEYOND LIMITS. REMOVED CHANNEL, FABRICATED NEW SUPPORT CHANNEL FROM 7075-T651, AND INSTALLED IN ACCORDANCE WITH DC-10 SRM VOL.2 51-31-01.