As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX C4 CHECK ZONE 144 SUBFLOOR TOP SURFACE IS CORRODED AT Y580-X581 AND Y24L-Y26L. REMOVED CORROSION IAW CPM CHAP 4. REMOVED .002 MATERIAL FROM ORIGINAL THICKNESS. .043 MATERIAL REMAINING WITHIN LIMITS IAW -8 200 SRM 51-20-11 STEP 3. HFEC INSP. IAW -8 200 NDTM PT 6, 51-00-01 NO CRACKS NOTED. C/W CPM CHAP 5 FOR SURFACE TREATMENT. PRIMED AND PAINTED IAW SRM 51-20-26 PARA 5A.