TENNESSEE GAS PIPELINE COMPANY
gas_transmission Incident —
Incident Information
| Report Date | — |
| Operator | TENNESSEE GAS PIPELINE COMPANY |
| Commodity | — |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 35.03464, -88.89160 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | — |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | — |
| Lost Commodity | — |
| Public/Private Damage | — |
| Emergency Response | — |
| Environmental Remediation | — |
| Other Costs | — |
Location Map
Incident Narrative
A LOOSE WIRE IN THE ""B"" COMPRESSOR BUILDING BPS (BUILDING PROTECTION SYSTEM) CABINET CAUSED THE STATION'S EMERGENCY SHUTDOWN SYSTEM TO ACTIVATE. THE ASSOCIATED UNINTENTIONAL GAS FROM THE BLOWDOWN WAS 16,606 MCF (GREATER THAN THE 3,000 MCF REPORTING THRESHOLD). DURING THE ESD TWO AUTOMATIC GAS-OPERATED BLOCK VALVE OPERATORS FAILED TO CLOSE THE BLOCK VALVES DUE TO A FAILED BEARING IN EACH OPERATOR. THIS RESULTED IN A LARGER AMOUNT OF GAS TO RELEASE, IN A CONTROLLED MANNER, THROUGH THE BLOWDOWNS. OPERATING PERSONNEL WERE ON SITE AND RESPONDED IMMEDIATELY. NOTE THAT DUE TO LOW DEMAND AT THE TIME OF THE EVENT THE COMPRESSOR STATION WAS NOT IN OPERATION. FOLLOWING REPAIRS, THE ESD SYSTEM WAS PLACED BACK IN SERVICE. ADDITIONALLY, EACH ESD VALVE HAS BEEN INSPECTED, TESTED AND FUNCTIONALLY VERIFIED. ALSO NOTE THAT PART D, QUESTION 3 ASKS FOR THE PIR AT THE LOCATION OF THE INCIDENT. THE PIR HAS BEEN CALCULATED BASED ON THE LARGEST DIAMETER PIPELINE WITHIN THE COMPRESSOR STATION.
About This Pipeline Incident
Pipeline incident data is reported to the Pipeline and Hazardous Materials Safety Administration (PHMSA). All significant incidents involving fatalities, injuries, or property damage over $50,000 must be reported.