As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ACCOMPLISHING AN LFEC INSPECTION OF THE STRINGER 4R SKIN LAP SPLICE BETWEEN FS 360 & 480 A CRACK INDICATION WAS NOTED. INTERNAL MFEC INSPECTION OF THE ENTIRE LAP JOINT. CONFIRMED A SINGLE CRACK IN THE LOWER FASTENER ROW OF THE LOWER SKIN BETWEEN FS 420 & 440. THE CRACKED AREA WAS CUT OUT OF THE LAP JOINT AND REPAIRED WITH AN EXTERNAL ALUMINUM DOUBLER PER B727 SRM 53-30-3, FIG 5 AND ER/A 377959-14AD.