COLUMBIA GULF TRANSMISSION, LLC
gas_transmission Incident — — November 28, 2014
Incident Information
| Incident Date | November 28, 2014 |
| Operator | COLUMBIA GULF TRANSMISSION, LLC |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 37.31000, -85.06114 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | COMPRESSOR OR COMPRESSOR-RELATED EQUIPMENT |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $0 |
| Emergency Response | $0 |
| Other Costs | $0 |
Location Map
Incident Narrative
AN 8-IN BLOW-OFF VALVE FAILED TO CLOSE AFTER INADVERTENTLY RELEASING FOR THE SECOND TIME MATERIAL INTO ATMOSPHERE. THE EMERGENCY SHUTDOWN WAS NOT ACTIVATED. IT WAS IDENTIFIED THAT THIS VALVE FAILED TO CLOSE DUE TO A SOLENOID VALVE HAD A SPRING THAT WAS IMPROPERLY SEATED. A ROOT CAUSE ANALYSIS INVESTIGATION IDENTIFIED THAT THE VALVE FAILED TO CLOSE THUS ALLOWING THE MATERIAL TO FLOW THROUGH THE VALVE UNTIL IT WAS CONTROLLED BY COMPRESSOR STATION PERSONNEL. A CHANGE TO THE PROGRAMMABLE LOGIC CONTROL SETTINGS WAS COMPLETED, TESTED THE SYSTEM AND THEN RETURNED INTO SERVICE. THE FACILITY WAS MONITORED TO ENSURE THAT THE SAME ERROR WILL NOT BE REGENERATED. NO FURTHER ISSUES WERE NOTED.
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.