As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX - WEB PLATE ON THE AFT SIDE OF THE FORWARD PRESSURE BULKHEAD HAS 3 CRACKS ALONG BEAM 1, APPROXIMATELY ONE INCH RIGHT OF CENTER. CRACKS NOTED DURING C-CHECK (NR 100-44). CRACKS REPAIRED I/A/W SRM 530218. AIRCRAFT RETURNED TO SERVICE.