Citationjet (C525/C526) - CJ I / II / III / IV
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Flight Instructor; Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 150; Flight Crew Total 4800; Flight Crew Type 3000
Time Pressure; Workload
Aircraft Equipment Problem Critical
Air Traffic Control Provided Assistance; Flight Crew Landed in Emergency Condition; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Diverted
Aircraft
On a part 91 flight with 2 passengers during our initial descent between FL410-FL350 we encountered a right engine failure and Cabin Altitude light resulting in [immediate] descent and landing at ZZZ . At FL410 prior to descent and engine failure; engine heats were selected on for 20-30 minutes. In the descent we heard a loud bang from the right engine and experienced a significant bump in pressure +1900 on pressure meter a few seconds after that we had right engine T2 fail amber annunciator followed by a red right generator fail. The engine started to roll back causing the oil pressure; hydraulic and fuel low pressure annunciator to illuminate. We advised ATC at that point and diverted to ZZZ. As we turned toward ZZZ we started to initiate the engine failure checklist then our cabin altitude annunciator illuminated. We discontinued the engine failure checklist and had to do an [immediate] descent following memory action items and dropping masks. The cabin had climbed to 15;000 ft. which caused [the] emergency pressure light to illuminate. Once we got below 10;000 cabin altitude light had gone out. ZZZ had given us vectors for a visual approach to [the runway]. We then proceeded to run the engine failure checklist. We saw that there was still N1 rotation so we decided to do a restart. The restart was successful and we landed.
CE-525 Pilot reported executing a diversion due to a right engine failure and loss of cabin pressurization.