As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CHECK-C MAINT FOUND CORROSION ON BOTTOM OF LONGERON 20R AT INTERSECTION WITH STA 1338 AND TIE CLIP AT END OF LONGERON. REMOVED CORRODED EXTRUSION SECTION AND INSTALLED EXTRUSION AND REPAIR SPLICE FROM STA 1314 TO 1338 PER SRM 53-02 FIG 18.