What was found
DURING ACCOMPLISHMENT OF ATLAS EO 4753A099, INSPECTION REVEALED A 1 INCH SKIN CRACK AT BS 980, STRINGER 38L. FURTHER DISASSEMBLY REVEALED TWO ADDITIONAL CRACKS UNDER THE LOWER DRAG FITTING FORWARD HOLE, ONE WAS 1 INCH LONG AND THE OTHER WAS 3 INCH. THE 1 INCH LONG CRACKS RAN CIRCUMFERENTIALLY TO THE FUSELAGE, THE OTHER 3 INCH CRACK RAN AXIAL. REPLACED 2 STRINGER TIE FITTINGS DUE SMALL HOLE CRACKS. REPLACED 2 DRAG FITTINGS DUE CORROSION. CUT OUT CRACKED SKIN AND REPLACED PER SRM PRACTICES IAW BOEING TELEX. (M)