As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:SPC CRACK REVEALED AT NR 4 PYLON REAR ENGINE MOUNT BULKHEAD FWD SIDE I/B DOUBLER, THE CRACK INITIATED FROM ONE FASTENER HOLE PROPAGATED UPWARD TO THE EDGE CRACK LENGTH .1875 INCH. NR 4 PYLON REAR MOUNT BULKHEAD REPAIRED AS PER HX RS R-54-53-34828.