As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX C4 CHECK CORROSION ON FUSELAGE FRAME TO STRINGER CLIP AT STA X234.475 AND RT STR 29. REMOVED CLIP TO ACCESS CORROSION REMOVAL. FABRICATED NEW CLIP FROM .040 7075 T6 ALUM. PER DHC8 400 SRM 53-20-15 PG 13 ITEM 186 AND USING ORIGINAL AS TEMPLATE. MATCH DRILLED. ALODINED NEW CLIP IAW DHC8-400 SRM 51-21-10, PRIMED IAW DHC8-400 SRM 51-25-10. HFEC INSP. BEND RAD. IAW -8 400 NDTM PART 6, 51-00-01 NO CRACKS NOTED. INSTALLED NEW CLIP IAW Q400 SRM 51-42-05.