As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX- C1 CHECK. AFT SERVICE DOOR STOP FITTING NR 19 ANCHOR NUTS AT POSITIONS B AND D ARE CORRODED. REMOVED SKIN ON FORWARD SIDE OF DOOR TO GAIN ACCESS. REMOVED NUT PLATES AND INSTALLED BOLTS AND NUTS REF SB 84-52-61. INSTALLED SKIN IAW SRM 51-42-15, 51-42-05, AND 51-40-45.