The Lac-Mégantic Derailment In Canada

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Lac-Mégantic Derailment Abstract: The Lac-Mégantic derailment occurred on July 6, 2013 in the town of Lac-Mégantic, which is located in the Eastern Townships of the Canadian province of Quebec and has population of about 6,000.The disaster occurred when a 74-car freight train, through a complex series of events, ran away and derailed. The events that led to the disaster included an inadequate repair on the lead locomotive’s engine, a lack of the necessary amount handbrakes, weak safety training for Montreal, Maine & Atlantic (MM&A) staff, and a failure of federal oversight. Background: -The Train: The train that derailed was designated “MMA 2” and was 4701 ft. long and weighed 10,287 tons. The train consisted of five locomotives in the …show more content…

MM&A performed a low-cost “non-standard” repair on the damaged engine. Because of the time and cost for a standard repair, along with the pressure to return the locomotive to service, the engine was inadequately repaired with an epoxy-like material that lacked the proper strength and durability. The repair eventually failed, leading to a series of problems in the engine and an accumulation of oil in the turbocharger and exhaust manifold. -Second Event: Two days before the crash occurred, an engineer on a separate trip had reported some trouble with the locomotive’s engine. Despite the concerns with the engine, the locomotive was put at the head of the train and was bound for Nantes. The engineer, Tom Harding, noticed that the engine was surging, making it difficult to keep a steady pace. By the time that the train arrived in Nantes, it was spewing enough smoke and oil that the taxi driver noticed oil landing on the cab’s window. Mr. Harding reported and discussed the issue with a rail traffic controller who was in Bangor, Maine. Both agreed to deal with the matter the following morning. The locomotive was then left …show more content…

Firefighters extinguished the fire and then shut down the locomotive. When the locomotive was shut down, no other locomotive was started. This meant that the air compressor was left off while the air brakes were slowly leaking. The train’s “reset safety control” system, which sets the entire train’s brakes should the engine fail, was not wired to go off. About an hour after firefighters shut down the train, the pressure in the air brakes had dropped low enough to allow the train to start rolling. The derailed 17 minutes later when it was 11.6 kilometers (7.21 mi)

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