What was found
AFW - FORWARD CARGO DOOR CUTOUT LOWER MAIN SILL HAS CORROSION. BLEND IS LOCATED APPROXIMATELY AT STATION 570 ON THE LOWER SURFACE OF THE FAIL SAFE STRAP. BLEND IS APPROXIMATELY 2 INCHES BY 5 INCHES WITH A DEPTH OF 0.124 INCH REMAINING. REMOVED AND VERIFIED CORROSION REMOVED. PERFORMED A HIGH FREQUENCY EDDY CURRENT INSPECTION ON ALL REMOVED FASTENER LOCATIONS. INSTALLED FASTENERS WET. APPLIED ALODINE AND TWO COATS OF PRIMER.