Citation X (C750)
Flight Crew Air Transport Pilot (ATP); Flight Crew Flight Instructor; Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 72; Flight Crew Total 8050; Flight Crew Type 1890
Aircraft Equipment Problem Critical
Flight Crew Landed in Emergency Condition; General Declared Emergency; General Maintenance Action
Aircraft
On departure immediately after gear selected up we received a HYD VOLUME LOW A amber CAS message. Both mains retracted; the nose gear remained down. We continued on departure and pulled out checklist at safe altitude. It took about 5 -10 minutes from takeoff until we were able to finish the check list so we got a HYD O'TEMP B Amber CAS message. Almost immediately after pulling the HYDR B/PTU CB per the checklist; the temperature of the B side came down to normal indications. After checklist was complete; we reviewed the checklist for HYD O'TEMP B; but everything had been completed with previous checklist and temperature of the B side was on its way down. We called our maintenance team. After all checklists were complete we felt comfortable continuing to destination; which also allowed us to burn fuel. Enroute we continued to monitor B system pressure and temperature. Prior to landing; we followed checklist for LANDIN WITH NO 'A' HYDRAULIC SYSTEM PRESSURE. For landing we had flaps at 15 max; no left TR; No antiskid and emergency brakes only. After reviewing the checklist; the crew briefed the landing and transfer of controls during the rollout. The PF would transition to the tiller and emergency brakes. The PM took the yoke and the right TR. We declared an emergency while talking to Approach and advised we would have to shut down on the runway and we would be using emergency brakes. The landing was uneventful. We were met by the fire trucks and airport ops. The FBO towed us to the hangar from the runway. Hydraulic leak appeared to come from a line in the nose compartment after post flight inspection.
[No additional information from Narrative #2.]
CE750 Crew experience the loss of hydraulic system A when the landing gear is selected up after takeoff. The main gear retracts but the nose gear remains extended. The crew elects to continue the relatively short flight to destination with the nose gear extended. An emergency is declared prior to landing and the aircraft is towed to the hangar after using emergency brakes to stop.