As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE STRINGER 18A WEB WAS FOUND WITH A CRACKED FASTENER HOLE AT FS 727 ON THE LT AND RT SIDES OF THE AIRCRAFT. THE CRACKS ARE TYPICAL OF THOSE NOTED IN BAC S/B 737-53-1066. THE CRACKS WERE REPAIRED WITH A NEW GUSSET CHANNEL SIMILAR TO THE S/B AND INSTALLED PER ER/A 368583-14.