Incident Overview

Date: Saturday 10 February 1990
Aircraft Type: Swearingen SA226-TC Metro II
Owner/operator: Perimeter Airlines (Inland)
Registration Number: C-FGEP
Location: Winnipeg International Airport, MB (YWG) – ÿ Canada
Phase of Flight: Landing
Status: Destroyed, written off
Casualties: Fatalities: 0 / Occupants: 13
Component Affected: Left undercarriageLeft undercarriage
Category: Accident
A Metro II aircraft operated by Perimeter Airlines experienced a series of events following landing at Winnipeg International Airport. The aircraft climbed to 13,000 feet and received warnings regarding hydraulic loss and an undercarriage issue. Shortly after, the wing area overheat light activated, followed by two explosions, ultimately revealing that the left undercarriage had exploded due to tire failure. The aircraft then shut down, extended the undercarriage, and rolled off the runway. A fuel system pressurisation line cracked, spraying fuel into the wheel well, which ignited. This resulted in a significant fire and damage to the aircraft.A Metro II aircraft operated by Perimeter Airlines experienced a series of events following landing at Winnipeg International Airport. The aircraft climbed to 13,000 feet and received warnings regarding hydraulic loss and an undercarriage issue. Shortly after, the wing area overheat light activated, followed by two explosions, ultimately revealing that the left undercarriage had exploded due to tire failure. The aircraft then shut down, extended the undercarriage, and rolled off the runway. A fuel system pressurisation line cracked, spraying fuel into the wheel well, which ignited. This resulted in a significant fire and damage to the aircraft.

Description

A Metro II operated by Perimeter Airlines returned to land at Winnipeg International Airport, Canada when the crew received various warnings. As the aircraft climbed through 13,000ft., the crew reportedly received indications of a possible loss of hydraulics followed by an undercarriage-unsafe warning. Shortly after this the wing area overheat light came on. Upon returning the crew heard two explosions, later determined to have been the tyres on the left undercarriage exploding. The crew decided to shut down and feather the no. 1 propeller and extended the undercarriage. A major portion of the left undercarriage fell away. The aircraft landed on runway 12 at and veered off during the roll out. A fuel system pressurisation line towards the rear of the no. 1 engine had apparently developed a crack and allowed a fine mist of fuel to be sprayed into the wheel well where it was ignited by an unknown heat source.

Primary Cause

Tire failure on the left undercarriage.Tire failure on the left undercarriage.

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