What was found
PDX - C4 LOWER FORE RUDDER SAFETY HINGE SHOWS SIGNS OF FRETTING ON UPPER SURFACE AROUND BOLT HOLE. REPAIRED IAW DHC-8-200 SRM 51-40-00 AND HORIZON AIR EA 2-55-133.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PDX - C4 LOWER FORE RUDDER SAFETY HINGE SHOWS SIGNS OF FRETTING ON UPPER SURFACE AROUND BOLT HOLE. REPAIRED IAW DHC-8-200 SRM 51-40-00 AND HORIZON AIR EA 2-55-133.