TRANSWESTERN PIPELINE COMPANY LLC
gas_transmission Incident — — December 14, 2020
Incident Information
| Incident Date | December 14, 2020 |
| Operator | TRANSWESTERN PIPELINE COMPANY LLC |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 35.62051, -100.97441 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | MALFUNCTION OF CONTROL/RELIEF EQUIPMENT |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $500 |
| Emergency Response | $0 |
| Other Costs | $0 |
Location Map
Incident Narrative
02:05 CST SCADA INDICATED A DROP IN PRESSURE AT P-3 PAMPA COMPRESSOR STATION, CONTROLLER CONTACTED TECHNICIAN. 02:30 CST TECHNICIAN ARRIVED ON SITE AND MANUALLY SHUT SUCTION VALVE. THE TECHNICIAN WAS ABLE TO DETERMINE A FIRE DETECTOR FAULT ON UNIT 304 TURBINE CAUSED THE STATION TO ESD. SUCTION VALVE DIDN'T CLOSE DUE TO THE POWER GAS SUPPLY LINE BEING FROZEN CAUSING GAS TO RELEASE UNTIL TECHNICIAN ARRIVED ONSITE AND ISOLATED THE STATION. THE POWER GAS LINE WAS STEAM CLEANED TO DEFROST THEN RE-PRESSURED THE POWER GAS LINE AND PUT THE STATION BACK INTO SERVICE. CURRENTLY THE POWER GAS LINE COMES OFF THE SIDE OF THE 24"" DISCHARGE LINE, THEN DIVES BELOW GROUND. TO PREVENT THIS FROM HAPPENING AGAIN, OPERATIONS PLANS TO RELOCATE THE POWER GAS LINE CLOSER TO THE SUCTION VALVE.
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.