As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING A SCHEDULED INSPECTION AME ATTEMPTED TO REMOVE HYDRAULIC FILTER ELEMENT. THE SREW IN PLUG PORTION SEPARATED FROM THE FILTER ELEMENT THAT REMAINED IN THE FILTER BOWL. THE SYSTEM WAS FLUSHED, FILTER REPLACED AND A/C RETURNED TO SERVICE.