As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CRACK INDICATIONS FOUND IN THE NR 1 AND NR 2 PYLON O/B SIDELOAD FITTING HOLES. BY REMOVING THE RT WING SKIN PANEL LAYER, IT WAS FOUND THAT THE CRACK INDICATION WAS CAUSED BY AN ENLARGED HOLE IN THAT LAYER, WHICH ACTS AS A SHIM IN THE STACKUP. NO CRACK INDICATIONS FOUND IN REMAINING LAYERS. ER/A 334582-14AD.