What was found
PDX - C4 THE INBOARD GROUND OF THE WING NUT PLATE FLANGES FOR 524BT EXHIBIT SIGNS OF CORROSION. REPAIRED IAW RD 8-57-633 AND DHC 8 200 SRM 51-00-04, 51-20-16.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PDX - C4 THE INBOARD GROUND OF THE WING NUT PLATE FLANGES FOR 524BT EXHIBIT SIGNS OF CORROSION. REPAIRED IAW RD 8-57-633 AND DHC 8 200 SRM 51-00-04, 51-20-16.