What was found
DURING TEAR-DOWN INSPECTION, A CRACK WAS DETECTED IN THE EXTERIOR SKIN C/T AERODYNAMIC FENCE ATTACHMENT POINT AT SLAT UPPER SURFACE NR 2 HOLE FROM L/E AT STA 86.5. DYE PENETRANT INSPECTION CONFIRMED CRACK, WAS .80 INCH LONG. SUSPECT TOO SMALL OF AREA WASHER, PN 66-20913-1, SECURED TO INTERIOR OF SKIN AND POSSIBLY TOO SMALL OF RADIUS AT CHEM MILL AREA ADJACENT TO WASHER ATTACH POINTS.