As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX C4 CHECK - MCD LAY SHAFT, AFT HINGE FITTING HAS PITTING AROUND BOLT HOLES. REMOVED MCD LAY SHAFT. SEPARATED LAYSHAFT AND DRILLED OUT AFT HINGE FITTING. DRILLED UP AND INSTALL NEW HINGE FITTING REF SRM 51-40-00. INSTALLED MCD LAY SHAFT.