What was found
PDX C4 - MAIN CABIN DOOR THRESHOLD OUTBOARD FLANGE HAS CORROSION AROUND ACCESS HOLE FOR DOOR SEAL INFLATION TUBE, UNDERSIDE OF THRESHOLD. REPAIRED IAW DHC-8-200 SRM 51-20-11.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PDX C4 - MAIN CABIN DOOR THRESHOLD OUTBOARD FLANGE HAS CORROSION AROUND ACCESS HOLE FOR DOOR SEAL INFLATION TUBE, UNDERSIDE OF THRESHOLD. REPAIRED IAW DHC-8-200 SRM 51-20-11.