As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LFEC INSPECTIONS OF THE STRINGER 4R SKIN LAP SPLICE BETWEEN FS 480 & 680 INDICATED A CRACK. INTERNAL HFEC INSPECTION CONFIRMED A SINGLE CRACK IN THE LOWER FASTENER ROW OF THE LOWER SKIN BETWEEN FS 500 & 520. THE CRACK WAS ROUTED OUT AND REPAIRED WITH AN EXTERNAL ALUMINUM DOUBLER PER B727 SRM 53-30-3, FIG 5 AND ER/A 368077-14AD.