What was found
FUSELAGE SKIN FS 660-680, STRG 4R, SKIN LAP SPLICE, CRACK REPAIR. LFEC INSPECTION OF THE STRINGER 4R SKIN LAP SPLICE BETWEEN FS 480 AND 680 INDICATED A CRACK IN THE LOWER FASTENER ROW OF THE LOWER SKIN. INTERNAL HFEC INSPECTION CONFIRMED A SINGLE CRACK BETWEEN FS 660 AND 680. THE CRACK WAS CUTOUT OF THE SKIN LAP AND REPAIRED WITH AN EXTERNAL ALUMINUM DOUBLER PER B727 SRM 53-30-3, FIG. 5 AND ER/A 367800-14AD.