Investigators say corrosion caused deadly 2016 pipeline leak

TEKAMAH, Neb. (AP) – Federal investigators say corrosion caused a deadly leak in an anhydrous ammonia pipeline in 2016 in northeast Nebraska.

The National Transportation Safety Board says in a report released last week that a series of small fatigue cracks caused by corrosion merged to create the leak in the pipeline operated by Magellan Midstream Partners.

The leak killed 59-year-old Phillip Henning who drove into a toxic cloud created by the fertilizer, and 23 rural homes were evacuated north of Tekamah in October 2016.

Magellan announced plans last year to decommission the 1,100-mile anhydrous ammonia pipeline that runs from Texas to the upper Midwest.

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