As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE, RECEIVED HYD Y RSVR LO LVL MESSAGE. FOLLOWED COM PROCEDURES AND CONTINUED TO FINAL DESTINATION WITH A NORMAL LANDING. MAINTENANCE REPLACED A LEAKING O-RING BETWEEN THE PTU QUICK DISCONNECT COUPLING AND MANIFOLD. LEAK CHECK OK.