What was found
LT PYLON OTBD AFT ATTACHMENT WASHER IS LOOSE. REMOVE CASTELLATED NUT, PN PE22072L14, CHECK RUN-ON TORQUE AND REINSTALL AND TORQUED NUT TO SPECIFIED TORQUE VALUE LISTED IN ETD AND RESAFTIED ON WO 526397-427 IAW ETD 2012-170-010558 AND EA E175-54-104, REV IR ON WO 601529.