As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX C4 CHECK CORROSION ON STR 23S (X387 TO X392) AND CONNECTING CLIP TO FRONT SPAR MAIN FRAME ON AFT SIDE AT X387.35. REMOVED LIGHT SURFACE FROM STRINGER AND CONNECTING CLIP USING SCOTCH BRITE PAD. ALODINED EXPOSED ALUM. IAW -8 200 CPM CHAP 4 AND 5. NEGLIGIBLE MATERIAL REMOVED. PRIMED IAW 51-20-36PG 6 PARA F1.