As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX - DURING A MAINTENANCE WALKAROUND FUEL WAS FOUND LEAKING FROM THE SINGLE POINT REFUELING VALVE DRAIN HOLE. THE AREA WAS INSPECTED AND THE REFUEL / DEFUEL ADAPTER WAS REPLACED. OPERATIONAL AND LEAK CHECKS WERE PERFORMED AND ALL WERE GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.