As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX - PANEL 622CT COUNTER SINKS HAVE FRETTING. REMOVED CORROSION FROM COUNTER SKINS ON FUEL PANEL 622CT USING SCOTCH BRITE. COMPLETED CLEANING FRETTING CORROSION USING SCOTH BRITE. MAPPED FOR ENGINEERING. REPLACED PANEL WITH NEW FROM STOCK.