TRUNKLINE GAS CO
gas_transmission Incident — — April 9, 2025
Incident Information
| Incident Date | April 9, 2025 |
| Operator | TRUNKLINE GAS CO |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 30.59601, -93.22704 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | MALFUNCTION OF CONTROL/RELIEF EQUIPMENT |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $0 |
| Emergency Response | $0 |
| Other Costs | $0 |
Location Map
Incident Narrative
"ON 04/09/25 AT APPROXIMATELY 1309 PM, A VALVE CAP O-RING FAILED CAUSING THE ENGINE ROOM GAS DETECTION SYSTEM TO TRIGGER THE ESD SYSTEM. A 26'' PLUG VALVE WAS FOUND TO BE LEAKING BY AND ADDITIONAL VALVES WERE MANUALLY OPERATED TO ISOLATE THE STATION. UPON INVESTIGATION, IT WAS DETERMINED THE 26'' PLUG VALVE WAS FOUND IN THE CLOSED POSITION HOWEVER, THE VALVE DID NOT CLOSE ENTIRELY. THE VALVE WAS INSPECTED, GREASED, FUNCTION TESTED AND WAS STILL FOUND TO BE NOT FULLY ISOLATING. THE SECTION WAS ISOLATED AND TAKEN OUT OF SERVICE. VALVE WAS LOCKED OUT AND TAGGED OUT FOR FURTHER INVESTIGATION AND REPAIRS. THE REST OF THE STATION WAS PUT BACK IN SERVICE. NOTIFICATION WAS MADE TO THE NRC (#1428154) AT 1406 PM ON 04/09/25 AND THE 48 HOUR UPDATE (1428308) WAS MADE ON 04/11/25 AT 0908 AM."
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.