Incident Overview

Date: Thursday 22 April 1999
Aircraft Type: Let L-410UVP
Owner/operator: H‚lica – Helic¢pteros del Caribe
Registration Number: YV-956C
Location: near Cl‚cy – ÿ France
Phase of Flight: En route
Status: Destroyed, written off
Casualties: Fatalities: 0 / Occupants: 3
Component Affected: Aircraft Engine(s)Aircraft Engine(s)
Category: Accident
A Swedish-registered aircraft, the Let, experienced a significant incident during a ferry flight from Sweden to Venezuela. The aircraft suffered a complete engine failure, followed by a second engine failure, necessitating a forced landing in a field. The aircraft was carrying 170 liters of fuel per hour to the wing tanks, exceeding the aircraft?s operational capacity. The accident was attributed to incomplete flight preparation, faulty fuel management, and insufficient knowledge of the aircraft?s performance.A Swedish-registered aircraft, the Let, experienced a significant incident during a ferry flight from Sweden to Venezuela. The aircraft suffered a complete engine failure, followed by a second engine failure, necessitating a forced landing in a field. The aircraft was carrying 170 liters of fuel per hour to the wing tanks, exceeding the aircraft?s operational capacity. The accident was attributed to incomplete flight preparation, faulty fuel management, and insufficient knowledge of the aircraft?s performance.

Description

The Let was on a ferry flight from Sweden to Venezuela. It departed Link”ping in Sweden, bound for Porto in Portugal. Over France at FL55 the no. 2 engine quit, followed by the no. 1 engine. A forced landing was carried out in a field. After 400 m the airplane collided with some trees. It appeared that the aircraft was equipped with 13 metal cans containing fuel secured in the cabin. Transfer to the structural tanks was done using an electrical pump. The crew was transferring 170 L of fuel per hour to the wing tanks, while the hourly consumption was around 360 L. from Sweden to Portugal when it crashed near Caen, probably due to fuel exhaustion. The Let had been fitted with an uncertified additional fuel tank . The accident was due to incomplete flight preparation, faulty fuel management and insufficient knowledge of the aircrafts performance.

Primary Cause

Incomplete flight preparation, faulty fuel management, and insufficient knowledge of the aircraft?s performance.Incomplete flight preparation, faulty fuel management, and insufficient knowledge of the aircraft?s performance.

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