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Synopsis:
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ON APRIL 18, 1979, A 24-INCH NATURAL GAS TRANSMISSION PIPELINE OWNED BY THE NATURAL GAS PIPELINE COMPANY OF AMERICA (GAS COMPANY) PULLED OUT OF A COMPRESSION COUPLING DURING A LINE-LOWERING PROJECT UNDER IOWA STATE HIGHWAY 181 IN A RURAL AREA NEAR DALLAS, IOWA. WITHIN SECONDS, THE NATURAL GAS IGINITED AND BURNED A 900-FOOT BY 400-FOOT AREA. FIVE OF THE EIGHT INJURED WORKERS WERE HOSPITALIZED. TWO CARS, A PICKUP TRUCK, AND A TRAILER HOUSING CONSTRUCTION EQUIPMENT WERE DESTROYED. A BACKHOE WAS PARTLY DAMAGED, AND WINDOWS WERE BROKEN IN A NEARBY FARMHOUSE.
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Recommendation:
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THE NTSB RECOMMENDS THAT THE MTB: COORDINATE WITH THE APPROPRIATE STATE AGENCIES, BY FIELD TEST REPORTS AND ON-SITE INSPECTION, IN MONITORING THE EXCAVATION OF THE COMPRESSION COUPLINGS ON THE 24-INCH TRANSMISSION PIPELINE TO INSURE THE INTEGRITY OF THE PIPELINE. (URGENT)
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Original recommendation transmittal letter:
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Overall Status:
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Closed - Acceptable Action
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Mode:
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Pipeline
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Location:
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Dallas, IA, United States
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Is Reiterated:
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No
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Is Hazmat:
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No
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Is NPRM:
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No
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Accident #:
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DCA79FP013
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Accident Reports:
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Report #:
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None
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Accident Date:
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4/18/1979
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Issue Date:
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8/8/1979
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Date Closed:
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3/13/1980
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Addressee(s) and Addressee Status:
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RSPA (Closed - Acceptable Action)
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Keyword(s):
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