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United States Department of Transportation United States Department of Transportation

Welded Repairs on Nurse Tanks

About this Document

Catastrophic results can occur when unauthorized repairs are performed on high pressure vessels transporting anhydrous ammonia (NH3). An improper weld on a nurse tank was a factor in a nurse tank failure that occurred on April 15, 2003 near Calamus, IA. resulting in one fatality and one serious injury. This is a stark reminder of the serious consequences that can occur as a result of a nurse tank failure.

Last updated: Thursday, February 20, 2014