As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX: LT WING LANDING FOR PANEL 522AT HAS 2 HOLES ON FWD EDGE AND 2 HOLES ON AFT EDGE AND 4 HOLES ON INBOARD END WITH FRETTING CORROSION ON EDGES OF HOLES. MAINTENANCE REPAIRED IAW RD 8/4-57-441, NDTM PART 6, 51-00-02 AND HORIZON EO 6-57-317.