Citationjet (C525/C526) - CJ I / II / III / IV
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 50; Flight Crew Total 6700; Flight Crew Type 5100
Aircraft Equipment Problem Critical
Flight Crew Took Evasive Action; General Declared Emergency
Aircraft
Cruising at FL410; sudden sound of air and loss of pressurization. Called Center to declare an emergency and given FL210. Told them I would need emergency descent. All seemed carried out without problem. (I had immediately followed the well trained drills of emergency descent.) Requested and given altitude of 10;000 FT to complete flight without problem.
A C525 lost pressurization at FL410; so the single pilot declared an emergency and descended to 10;000 FT.