As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BNA - FLT 1669 - EN ROUTE LGA-HOU, DETECTED LOS OF RIGHT SIDE HYDRAULIC QUANTITY. AIR INTERRUPTED, DIVERTED BNA AND LANDED WITHOUT FURTHER INCIDENT. REPLACED RIGHT SIDE HYDRAULIC TRANSFER CYLINDER O-RING. SERVICED HYDRAULIC SYSTEM. NO LEAKS NOTED. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)