As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX - C5 CHECK - MCD SHELL HAS SURFACE CORROSION ON FORWARD FLANGE FOR STEP ASSEMBLY SEAL APPROXIMATELY 7" BELOW FORWARD CENTER PRESSURE STOP. REPAIRED BY REMOVING LIGHT CORROSION BY HAND WITH SCOTCH BRITE PAD AND IAW -8 200 SRM 51-20-16, 51-20-86.