As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE UNDERGOING AN OVERNIGHT MAINTENANCE CHECK, TECHNICIANS DISCOVERED LT PYLON IB LOWER LINK LUG TO BE CRACKED. PERFORMED PERMANENT REPAIR TO THE LT PYLON IB CHORD FCBS 54-50-002 IN ACCORDANCE WITH ETD2018-170-016528. AC WAS RETURNED TO SERVICE 2-24-18.