As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX: RT WING STRESS PANEL LADDER PLATE AFT ROW HAS A SCREW HOLE WITH PITTING CORROSION THAT HAS BEEN BLENDED BEYOND LIMITS. LOCATED AT YW 157.825, APPROX DEPTH IS .017". MAINTENANCE HFEC INSPECTED BLENDED AREA FOR CRACKS IAW Q400 NDTM PART 6, TASK 51-00-02-250-801. NO CRACKS NOTED. REPAIRED IAW EA 6-57-377, PG 6, STEPS 1-7. SANDED FASTWELD DOWN SMOOTH.