West Caribbean Airways Flight 708
Immediately after the anti-icing system was activated, the airspeed decreased to near stall speed. At 06:57 UTC, the flight crew requested permission to descend to FL310, which was approved. The autopilot was disconnected and the airplane started to descend. As the airplane descended past about FL315, the airspeed continued to decrease and the engine power decreased to about flight idle. Two minutes later, a further descent to FL290 was requested, but the controller at Maiquetía did not understand that this was a request from Flight 708 and asked who was calling. Flight 708 responded and immediately requested descent to FL240. The controller inquired about the state of the aircraft, to which they responded under the belief that both engines had flamed out. The controller then cleared the flight to descend however they needed.