As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION OF THE STRINGER 4L SKIN LAP JOINT PER AD 2003-08-15 REVEALED A CRACKED FASTENER LOCATION AT FS 500. THE CRACK WAS REMOVED WITH A CUTOUT IN THE SKIN. THE CUTOUT WAS REPAIRED WITH AN EXTERNAL ALUMINUM REPAIR DOUBLER PER B737-200 SRM AND PER ER/A 092825-14AD.