What was found
AFW CORROSION FOUND ON 1.5 BY .7 INCH AREA, DEPTH .040, OF FORWARD CARGO DOOR LOWER MAIN SILL NEAR STA 613. THICKNESS PRIOR TO CORROSION REMOVAL WAS .276. REMOVED FASTENERS AS REQUIRED FOR BLENDOUT. ENSURE NO CORROSION ON FASTENERS OR IN HOLES. REMOVED ALL CORROSION. INSPECTED USING HFEC FOR CRACKS. ROTO-PEEN BLENDED SURFACES. ALODINE AND PRIME BLENDED AREA WITH TWO COATS PRIMER. APPLIED DYNOL TO ENTIRE AREA. SYSTEM GROUND CHECKED NORMAL OPERATION.