What was found
PDX: FOUND RT WING APERTURE LANDING FOR PANEL (621BT) HAS FRETTING CORROSION AROUND NUMEROUS BOLT HOLES. MAINTENANCE REPAIRED IAW RD 8/4-57-441, RD 8/4-57-526, NDTM PART 6, 1-84-7A AND HORIZON EA 6-57-427.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PDX: FOUND RT WING APERTURE LANDING FOR PANEL (621BT) HAS FRETTING CORROSION AROUND NUMEROUS BOLT HOLES. MAINTENANCE REPAIRED IAW RD 8/4-57-441, RD 8/4-57-526, NDTM PART 6, 1-84-7A AND HORIZON EA 6-57-427.