TENNESSEE GAS PIPELINE COMPANY
gas_transmission Incident —
Incident Information
| Report Date | — |
| Operator | TENNESSEE GAS PIPELINE COMPANY |
| Commodity | — |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 42.12228, -72.00338 |
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
ON 2/13/2016 TGP PERSONNEL RECEIVED NOTIFICATION THAT A UNIT IN STATION 264 FELL OFFLINE. AFTER PERSONNEL ARRIVED ON SITE, THEY VERIFIED THAT GAS WAS VENTING. PERSONNEL THEN SHUT-IN THE STATION AND THIS ACTION STOPPED THE RELEASE OF GAS. IT WAS DISCOVERED THAT THERE WERE RELAY ISSUES WITHIN THE PLC AND THIS CAUSED THE UNIT TO NOT PROPERLY SHUT DOWN IN ""SAFE MODE"", AND AS A RESULT THE UNIT SUCTION AND DISCHARGE VALVES REMAINED OPEN. TGP PERSONNEL CONFIRMED THE WIRING AND INSTALLATION OF THE BACKUP RELAY LOGIC CONTROL OF THE UNIT AND REPLACED PLC COMPONENTS IN THE UNIT VALVE CIRCUITRY PORTION OF THE BACK UP RELAY SYSTEM.
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.