As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX FLIGHT NR 2125, LOUD SCRAPING THUD HEARD WHEN DISCONNECTING FROM TUG RAMP SAID NOSE WHEEL JERKED TO THE SIDE. MAINTENANCE COMPLIED WITH GENERAL VISUAL INSPECTION OF NOSE STRUT ASSEMBLY. NO OBVIOUS DEFECTS NOTED. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.