ANR PIPELINE CO
gas_transmission Incident —
Incident Information
| Report Date | — |
| Operator | ANR PIPELINE CO |
| Commodity | — |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 41.62032, -88.58349 |
Cause
| Cause | INCORRECT OPERATION |
| Subcause | — |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | — |
| Lost Commodity | — |
| Public/Private Damage | — |
| Emergency Response | — |
| Environmental Remediation | — |
| Other Costs | — |
Location Map
Incident Narrative
MAINLINE RELIEF VALVE OPENED AND DISCHARGED TWICE (ABOUT 40 MINUTES AND ABOUT 15 MINUTES) WHEN ENGINES SHUT DOWN AND BYPASS VALVES OPENED. TURNS OUT RELIEF SET POINT WAS ABOUT 30 PSI TOO LOW AND THE STATION DISCHARGE PRESSURE WAS ABOVE THIS LOW SET POINT. ENGINES WENT DOWN BECAUSE OF AN INCORRECT (ALSO LOW) MAXIMUM DISCHARGE VALUE IN THE NEW STATION CONTROL LOGIC.
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.