Jul 30, 2005
Washington, DC, July 30, 2005 - Investigators from the U.S. Chemical Safety and Hazard Investigation Board today continued a preliminary investigation into the explosion and fire which occurred at the BP Texas City refinery on Thursday, July 28, 2005. CSB Investigators Giby Joseph and Francisco Altamirano visited the site where the accident occurred for a second time. They continued interviewing plant operators, and requested additional documentation and other information from the company regarding the chemical process underway at the time of the accident. They arranged for eyewitnesses to be interviewed early in the week, and announced their intention to arrange testing protocols -- to examine a pipe that separated from a flange -- to determine what caused it to fail. Mr. Joseph said the explosion occurred during what appeared to be a normal operation in the reactor section of the plant's Resid Hydrotreater Unit # 1, or RHU, when an eight-inch pipe connected to a heat exchanger failed at the flange. (Flanges are pipe fittings which are used to connect equipment such as pipes and valves.)
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