As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX - C1 CHECK - X545 STRINGER 31R SUSPECT CORROSION AT SKIN CLIP. MAINTENANCE REMOVED RIVETS AND BLENDED OUT CORROSION FROM CLIP, BLEND REMAINED WITHIN LIMITS, INSPECTED AND NO CRACKS NOTED. INSTALLED RIVETS AND RESTORED FINISH TO REPAIR AREA.