ANR PIPELINE CO
gas_transmission Incident — — July 13, 2012
Incident Information
| Incident Date | July 13, 2012 |
| Operator | ANR PIPELINE CO |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 41.62292, -88.58009 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | COMPRESSOR OR COMPRESSOR-RELATED EQUIPMENT |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $298,000 |
| Emergency Response | $0 |
| Other Costs | $0 |
Location Map
Incident Narrative
"UNIT 1009 WAS STARTED AT ABOUT 0820 THE MORNING OF JULY 13 2012. UNIT WENT DOWN AT 0900 DUE TO HIGH DISCHARGE TEMPERATURES. ON-SITE STAFF WAS IN MEETING AND DID NOT KNOW UNIT WENT DOWN UNTIL GAS CONTROL CALLED AT 1030. BY THAT TIME HIGH TEMPERATURES HAD DISSIPATED. HIGH TEMP ALARMS WERE RESET. AT 1130 A LOCAL START OF THE UNIT WAS INITIATED. WHEN TECHNICIAN RETURN TO CONTROL ROOM AFTER HALTING START-UP OF NEARBY UNIT, HE HEARD AND FELT AN EXPLOSION. EXPLOSION OCCURRED INSIDE BLOWDOWN EXHAUST SILENCER, DAMAGING SILENCER AND NEARBY CONNECTING FACILITIES. NO PERSONNEL WERE INJURED AS A RESULT OF THE EXPLOSION. IT WAS BELIEVED THAT GAS LEAKED BY A FUEL LINE BLOCK/BLEED VALVE AND SOME ACCUMULATED GAS IN THE SILENCER IGNITED. IGNITION WAS PROBABLY INITIATED FROM MECHANICAL SPARK FROM TURBOCHARGER, A NORMAL OCCURRENCE."
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.