What was found
PDX - FRAME 9305 ABOVE STRINGER 1 HAS CORROSION BUBBLES AT FOUR NUT PLATES UNDER UPPER FRAME CAP. REPAIRED IAW HORIZON AIR EA 4-53-1104.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PDX - FRAME 9305 ABOVE STRINGER 1 HAS CORROSION BUBBLES AT FOUR NUT PLATES UNDER UPPER FRAME CAP. REPAIRED IAW HORIZON AIR EA 4-53-1104.