As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GIG - FLT 972 - EN ROUTE GIG-JFK, APPROXIMATELY 30 MINUTES AFTER TAKEOFF LOST ALL RIGHT SIDE HYDRAULIC SYSTEM FLUID. DECLARED EMERGENCY, RETURNED GIG AND LANDED WITHOUT FURTHER INCIDENT. REPLACED HYDRAULIC DRIVEN PUMP PRESSURE LINE. FLUSHED RIGHT ENGINE. RAN BOTH ENGINES PER THE MM. NO LEAKS NOTED. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)