As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:C NR 4 PYLON - SKIN / DOUBLER CRACKED FOUND 3EA FASTENER HOLES ON LEFT LWR EDGE BESIDE AFT UPPER ENG MOUNT FITTING NAC STA 220, (CRACK LENGTH .5 INCH). NR 4 PYLON LEFT LOWER EDGE SKIN REPAIRED AS PER SRM 54-34-03 FIG 24. AFTER STOP HOLES DRILLED CRACK FREE CONFIRMED BY NDT INSPECTION AS PER NTM PT6 51-00-00 FIG 4.