As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING A M01 CHECK THE LEFT AND RIGHT HYDRAULIC SYSTEM EMPENNAGE FLIGHT CONTROL SHUTOFF VALVES WERE FOUND LEAKING.AFTER INVEASTIGATION , ONE OF THE L/H BOLT WAS SHEARED WHILE OTHERS WERE ENGAGED ONLY WITH A COUPLE OF THREADS. SIMILAR FINDINGS WERE FOUND ON A PREVIOUS AIRCRAFT.