Learjet 40
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 110; Flight Crew Type 240
Aircraft Equipment Problem Less Severe
General None Reported / Taken
Aircraft
Passing FL395 the aircraft lost cabin pressure; the emergency pressurization system activated and the crew reported this to the controlling agency whilst following the checklist and standard operating procedures published by the aircraft manufacturer. No other abnormalities occurred.
LR-40XR Captain reported loss of cabin pressure at FL395.