TENNESSEE GAS PIPELINE CO (EL PASO)
gas_transmission Incident — — February 1, 2012
Incident Information
| Incident Date | February 1, 2012 |
| Operator | TENNESSEE GAS PIPELINE CO (EL PASO) |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 42.75412, -74.40179 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | COMPRESSOR OR COMPRESSOR-RELATED EQUIPMENT |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $103,000 |
| Emergency Response | $0 |
| Other Costs | $0 |
Location Map
Incident Narrative
NATURAL GAS WAS RELEASED AT TENNESSEE GAS PIPELINE (TGP) COMPANY'S COMPRESSOR STATION 249 FROM UNIT 1A WHEN A COMPRESSOR ROD FAILED IN ITS THREADS. THE STATION'S ESD SYSTEM ACTIVATED AND EVACUATED THE STATION OF NATURAL GAS. THE UNIT HAS BEEN REPAIRED AND IS BACK IN SERVICE. A ROOT CAUSE ANALYSIS DETERMINED THAT THE FAILURE WAS LIKELY DUE TO A COMBINATION OF FACTORS, INCLUDING HIGH CYCLE LOW NOMINAL STRESS AXIAL FATIGUE, INSUFFICIENT TIGHTENING DURING THE LATEST MAINTENANCE ACTIVITY, AND THE PRESENCE OF LOWER STRENGTH MATERIAL NOT MEETING THE CHEMISTRY AND MECHANICAL PROPERTY REQUIREMENTS OF THE SPECIFICATION FOR NEW REPLACEMENT COMPRESSOR RODS.
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.