As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUSEALGE SKIN CRACKS WAS FOUND AT FS 727B ABOVE STRINGER 20R AT A CHEM MILL LOCATION. THE DAMAGE WAS IDENTIFIED AND REMOVED AN A REPAIR INSTALLED FOLLOWING THE INSTRUCTIONS OF THE B737-200 SRM 53-30-3 FIGURE 48. THE REPAIR IS INSTALLED FOLLOWING INSTRUCTIONS PROVIDED BY ERA 450393-14.