Incident Overview

Date: Tuesday 2 May 2000
Aircraft Type: Learjet 35A
Owner/operator: Northern Executive Aviation
Registration Number: G-MURI
Location: Lyon Satolas Airport (LYS) – ÿ France
Phase of Flight: Landing
Status: Destroyed, written off
Casualties: Fatalities: 2 / Occupants: 5
Component Affected: The aircraft’s flight control systems, specifically the right engine’s thrust control system, and the aircraft’s balance.The aircraft’s flight control systems, specifically the right engine’s thrust control system, and the aircraft’s balance.
Investigating Agency: BEABEA
Category: Accident
A Learjet G-MURI aircraft experienced a catastrophic accident during a flight to Nice. The aircraft suffered a loss of engine control, resulting in a sudden descent, a wing contact with the ground, and subsequent fire. The pilot radioed a Mayday call indicating a loss of engine and a diversion to Lyon-Satolas.A Learjet G-MURI aircraft experienced a catastrophic accident during a flight to Nice. The aircraft suffered a loss of engine control, resulting in a sudden descent, a wing contact with the ground, and subsequent fire. The pilot radioed a Mayday call indicating a loss of engine and a diversion to Lyon-Satolas.

Description

Learjet G-MURI departed Farnborough at 11:22 GMT for a flight to Nice. At 12:22 GMT, during cruise flight at FL390, no. 1 engine problems forced the crew to shut it down. The captain then radioed: “Mayday Mayday Mayday Nex four Bravo we’ve lost an engine at flight level three nine zero and we’re in the descent”. Air traffic control suggested a diversion to Lyon-Satolas. The aircraft was positioned for a runway 36L ILS approach. At the end of the unstabilized final approach, the airplane descended a little bit below the glide slope. Significant power was then added on the no. 2 engine, following which the aircraft banked to the left causing the wing to touch the ground. The aircraft crashed next to the runway and caught fire. PROBABLE CAUSE: “The accident resulted from a loss of yaw and then roll control which appears to be due to the failure to monitor flight symmetry at the time of the thrust increase on the right engine. The hastiness exhibited by the captain and his difficulty in coping with the stress following the engine failure, contributed to this situation.”

Source of Information

http://www.skybrary.aero/index.php/LJ35,_Lyon_France,_2000_(HF_LOC_FIRE_AW)http://www.skybrary.aero/index.php/LJ35,_Lyon_France,_2000_(HF_LOC_FIRE_AW)

Primary Cause

Loss of yaw and roll control due to insufficient flight symmetry monitoring during the thrust increase on the right engine.Loss of yaw and roll control due to insufficient flight symmetry monitoring during the thrust increase on the right engine.

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