Incident Overview

Date: Wednesday 16 January 1991
Aircraft Type: Swearingen SA226-TC Metro II
Owner/operator: Muk Air Taxi
Registration Number: OY-BZW
Location: Kobenhavn-Kastrup Airport (CPH) – ÿ Denmark
Phase of Flight: Approach
Status: Destroyed, written off
Casualties: Fatalities: 0 / Occupants: 2
Component Affected: NozzleNozzle
Category: Accident
A Metro II aircraft was grounded due to a catastrophic engine failure at 4nm out of Copenhagen runway 22L. The no. 2 engine experienced an uncontained failure, resulting in the nosegear not extending despite attempts to recycle the undercarriage. The aircraft subsequently made a nose gear-up landing, leading to its complete loss.A Metro II aircraft was grounded due to a catastrophic engine failure at 4nm out of Copenhagen runway 22L. The no. 2 engine experienced an uncontained failure, resulting in the nosegear not extending despite attempts to recycle the undercarriage. The aircraft subsequently made a nose gear-up landing, leading to its complete loss.

Description

The Metro II was approaching Copenhagen runway 22L when, at 4nm out, the no. 2 engine suffered an uncontained failure. The crew shut down the engine and lowered the gear. The nosegear however, would not extend. Recycling the undercarriage did not help. The aircraft then made a nose gear-up landing. The aircraft was damaged beyond repair and was stored at Copenhagen; in 2001 the wreck was offered for sale for USD 100,000 by BenAir. The engine failure was caused by a failure of the turbine assembly retention guide vane. The failure of the engine reduced hydraulic pressure and this combined with a ‘sluggish’ nose undercarriage uplock prevented the nose undercarriage from extending.

Primary Cause

Failure of the turbine assembly retention guide vane.Failure of the turbine assembly retention guide vane.

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