Falcon 2000 flight crew reported diverting to an alternate when they experienced a left engine stall...

Attributes
ACN	1409759
Time
Date	201612
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Aircraft 1
Make Model Name	Falcon 2000
Operating Under FAR Part	Part 135
Flight Phase	Cruise
Flight Plan	IFR
Component
Aircraft Component	Turbine Engine
Person 1
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Pilot Not Flying First Officer
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

Engine stalled and loss of power in cruise. Diverted to [an alternate] for repairs. There was airframe vibration; engine indicator showed left engine loss of power; no cas message; autopilot and auto throttle disconnected. We ascertained that the engine was still operating. We advanced the power lever to check the engine; at the higher power setting it felt like the engine was again vibrating. We decided to reduce the power and divert. We landed without incident.

Original NASA ASRS Text

Title: Falcon 2000 flight crew reported diverting to an alternate when they experienced a left engine stall and loss of power in cruise flight.

Narrative: Engine stalled and loss of power in cruise. Diverted to [an alternate] for repairs. There was airframe vibration; engine indicator showed left engine loss of power; no CAS message; autopilot and auto throttle disconnected. We ascertained that the engine was still operating. We advanced the power lever to check the engine; at the higher power setting it felt like the engine was again vibrating. We decided to reduce the power and divert. We landed without incident.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.