As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LFEC INSPECTION OF THE STRINGER 4R SKIN LAP SPLICE BETWEEN FS 360 AND 480 INDICATED A CRACK IN THE LOWER FASTENER ROW OF THE LOWER SKIN PANEL. INTERNAL HFEC INSPECTION CONFIRMED A SINGLE CRACK BETWEEN FS 420 AND 440. THE CRACK WAS ROUTED OUT AND AN EXTERNAL REPAIR DOUBLER INSTALLED PER B727 SRM 53-30-3, FIG 5 AND ER/A 367547-14AD.