As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSTALLED TSI 0:00 FILTER IN HYDRAULIC FILTER HOUSING, PRESSURED SYSTEM WITH HYDRAULIC MULE, MOVED CONTROLS AND FILTER BYPASS BUTTON POPPED UP. RESET SEVERAL TIMES AND BYPASS KEPT POPPING. REPLACED HYDRAULIC FILTER AND RECHECKED FOR BYPASS AND NO BYPASS HAS OCCURRED.