TENNESSEE GAS PIPELINE COMPANY
gas_transmission Incident — — May 21, 2016
Incident Information
| Incident Date | May 21, 2016 |
| Operator | TENNESSEE GAS PIPELINE COMPANY |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 35.02418, -87.75765 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | MALFUNCTION OF CONTROL/RELIEF EQUIPMENT |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $0 |
| Emergency Response | $1,350 |
| Other Costs | $0 |
Location Map
Incident Narrative
"ON MAY 21, 2016, AN UNINTENTIONAL RELEASE OF NATURAL GAS OCCURRED AT THE TGP COLLINWOOD COMPRESSOR STATION 555 IN WAYNE COUNTY, TENNESSEE WHEN THE STATION EXPERIENCED AN EMERGENCY SHUT-DOWN (ESD) DUE TO A FAILED GAS DETECTOR AND SUBSEQUENT FAILURE OF AN ESD ISOLATION VALVE TO PROPERLY CLOSE. THIS RESULTED IN A RELEASE OF 32,147 MCF OF NATURAL GAS. STATION EMPLOYEES RESPONDED AND SHUT IN THE AFFECTED VALVE. A FAILED GAS DETECTOR WAS IDENTIFIED AS THE CAUSE OF THE ESD. THE REPORTABLE RELEASE OF NATURAL GAS RESULTED WHEN THE ESD ISOLATION VALVE FAILED TO CLOSE. FAILURE OF THE ESD ISOLATION VALVE TO PROPERLY CLOSE RESULTED FROM THE IMPROPER INSTALLATION OF THE UNIT POWER GAS LINES. PRIOR TO RETURNING THE STATION BACK TO SERVICE, THE POWER GAS LINES WERE PROPERLY RE-INSTALLED AND THE GAS DETECTOR COMPONENTS WERE REPLACED (CONTROLLER AND SENSORS). THE VALVE AND GAS DETECTOR WERE TESTED AND THE STATION WAS RETURNED TO SERVICE AT 1:03 AM CST THE FOLLOWING DAY."
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.