As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INTERNAL HFEC INSPECTION OF THE STRINGER 4L SKIN LAP SPLICE BETWEEN FS 360 TO 480 REVEALED MULTIPLE CRACKS IN THE LOWER FASTENER ROW OF THE LOWER SKIN PANEL. THE ENTIRE LAP SPLICE WAS CUTOUT ALONG THE PANEL LENGTH AND REPAIRED WITH AN EXTERNAL ALUMINUM DOUBLER PER ER/A 367304-14AD.