What was found
PDX- LEFT WING FRONT SPAR, UPPER SURFACE HAS FRETTING CORROSION AROUND ATTACH HOLES FOR PANEL 511AL. REPAIRED IAW DHC-8 RD8-57-811 AND SRM 51-2011, AND HORIZON AIR EA 9-57-546.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PDX- LEFT WING FRONT SPAR, UPPER SURFACE HAS FRETTING CORROSION AROUND ATTACH HOLES FOR PANEL 511AL. REPAIRED IAW DHC-8 RD8-57-811 AND SRM 51-2011, AND HORIZON AIR EA 9-57-546.