As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX - AFTER GEAR RETRACTION OR EXTENSION, A SINGLE CHIME SOUNDS WITH AN AMBER PROX SYSTEM CAS MESSAGE, FOLLOWED BY A BLUE HYDRAULIC QTY CAS MESSAGE. REPLACED LEFT AMIN GEAR DOWNLOCK FORWARD HARNESS I/A/W MM. GEAR INDICATION OPS CHECKED GOOD ON GEAR SWING. AIRCRAFT RETURNED TO SERVICE.