Challenger CL600
Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Critical
Air Traffic Control Provided Assistance; Flight Crew Landed As Precaution; Flight Crew Landed in Emergency Condition; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Took Evasive Action
Aircraft
During cruise; the right pack failed. The Captain ran the QRH for single pack operations. About 15 minutes later; we received a Left Bleed Duct warning and the left pack failed. The aircraft became unpressurized at that point. We descended immediately to 10;000 feet MSL. The Captain completed the QRH procedure for unpressurized flight. We advised ATC and our dispatcher that we would be diverting.Multiple failures led to a high workload environment.
A Bombardier CL600 First Officer reported a failure of the right pack; followed shortly after by a Left Bleed Duct Warning and the left pack failed.