The report documents a gas pipeline accident. The National Transportation Safety Board determines that the probable cause of the explosion and fire was the ignition of an accumulation of natural gas which had migrated under a pressure of 20 p.s.i.g. from a failed plastic service saddle-tapping nipple connection into the house. Contributing to the failure of the connection were its improper installation, previously imposed load stresses which resulted from the repeated operation of heavy construction equipment over the connection, and heavy rainfall which caused the soil to exert pressure on the pipe. (Author)


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    Title :

    Pipeline Accident Report. Lone Star Gas Company, Fort Worth, Texas. October 4, 1971


    Publication date :

    1972


    Size :

    22 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English