Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Critical
Air Traffic Control Issued Advisory / Alert; Flight Crew Diverted; Flight Crew Landed in Emergency Condition; General Declared Emergency
Aircraft; Airport
We were at FL390 north of the VOR when the Right Hydraulic Level Low EICAS message came on. We ran the QRH checklist for that. Hydraulic quantity was 24. Shortly after that; the Right Hydraulic Low Pressure EICAS message came on. I started running the QRH checklist for the Right Hydraulic Low Pressure. We talked to Center and asked for lower and asked to divert. We declared an emergency. I then informed the passengers.When we were handed off to Approach Control; they told us the runway was partially closed and there was 7;100 FT available. We elected to go to [a further airport] for a longer runway. The aux hydraulic pump was on and hydraulic pressure was fluctuating between 0 and 1;500 PSI. The landing gear came down normally and; after landing; we had to use the emergency brakes. We stopped on the runway but could not taxi due to no nose wheel steering and only having emergency brakes. The fire trucks met us and the passengers were given a ride to the FBO and the SIC rode with them. I stayed with the plane while they towed it to the ramp. There was a significant amount of hydraulic fluid leaking from the belly of the plane.This situation was caused by mechanical failure of the hydraulic system. Once this occurred; we followed the emergency checklist.
[No additional information was included in the secondary narrative.]
A Gulfstream 200 flight crew declared an emergency and diverted due to right hydraulic system failure. Diverted again when their original diversion airport had inadequate runway length due to construction.