What was found
PDX - CORROSION ON UNDER SIDE OF HORIZONTAL STIFFENING RIB ON AFT FLANGE OF FRAME 253.400, BETWEEN STRINGERS 24 LT AND 25 LT. REPAIRED IAW HORIZON AIR EA 9-53-534.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PDX - CORROSION ON UNDER SIDE OF HORIZONTAL STIFFENING RIB ON AFT FLANGE OF FRAME 253.400, BETWEEN STRINGERS 24 LT AND 25 LT. REPAIRED IAW HORIZON AIR EA 9-53-534.