As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX - C5 CHECK - FRAME CASTELLATION AT STATION X333.3 AFT FACE OF FRAME BETWEEN STRINGERS 23L AND 24L HAS SUSPECT CORROSION. REPAIRED IAW DHC8 200 CPM CHAPTER 4 STEP 8, NDTM PT-1 51-00-04 AND PT-6 51-00-01, DHC8 200 SRM 51-20-11, 51-12-16, 51-20-51 AND 51-40-11.