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Rail News Home Federal Legislation & Regulation

1/26/2021



Rail News: Federal Legislation & Regulation

NTSB: Failed brake system led to fatal Wyoming train collision


The derailed rail cars of two UP trains involved in a collision in Granite Canyon, Wyoming, are seen perpendicular to the track at the accident site.
Photo – NTSB report, UP photo

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The National Transportation Safety Board (NTSB) has determined that an air brake failure caused a fatal collision between two Union Pacific Railroad trains in Granite Canyon, Wyoming, in 2018.

In a report issued yesterday, the NTSB said the Oct. 4, 2018, collision occurred when the air brakes on an eastbound UP train failed while descending a hill. An air flow restriction in the brake pipe caused the air brake system to fail, and the end-of-train device failed to respond to an emergency brake command.

The striking train collided with the rear of a standing UP train at about 55 mph, causing the lead locomotives of the striking train and rail cars of both trains to derail. The locomotive engineer and conductor of the striking train were killed, NTSB officials said in a press release.

The NTSB investigation revealed the locomotive engineer applied the emergency brake as the train descended, however the train's speed continued to increase. After the emergency brake application, the crew received a "front-to-rear no communication" message indicating the emergency brake request was not received at the end-of-train device, which would have initiated an emergency brake application from the rear of the train, agency officials said.

Contributing to the accident was the railroad's "failure" to maintain the rail cars in accordance with federal regulations, including regularly performing single rail-car air brake tests, NTSB officials concluded. Also contributing to the incident were communication protocols, set by Federal Railroad Administration and industry standards, that allowed extended time intervals for loss of communication notification between the head-of-train device and end-of-train device without warning the train crew of the communication loss, they said.

Based on its findings, the NTSB issued four safety recommendations to the FRA, Association of American Railroads and American Short Line and Regional Railroad Association.

The NTSB's full report can be read here.



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