TENNESSEE GAS PIPELINE COMPANY
gas_transmission Incident — — July 7, 2022
Incident Information
| Incident Date | July 7, 2022 |
| Operator | TENNESSEE GAS PIPELINE COMPANY |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 36.34586, -86.86824 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | THREADED CONNECTION/COUPLING FAILURE |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $1,150 |
| Emergency Response | $350 |
| Other Costs | $400 |
Location Map
Incident Narrative
"ON JULY 7, 2022, TENNESSEE GAS PIPELINE (TGP) STATION 563 LOST COMMERCIALLY PROVIDED ELECTRIC POWER SERVICE FROM 03:49 TO 03:53. AT 03:58, TGP GAS CONTROL NOTIFIED THE ON CALL TECHNICIAN THAT STATION 563 WAS OFF-LINE. SUBSEQUENTLY, AT 04:13 THE STATION EXPERIENCED AN EMERGENCY SHUT DOWN (ESD) RELEASING GAS TO ATMOSPHERE. AT 04:50, TGP TECHNICIAN ARRIVED ON SITE AND DETERMINED THE STATION SAFE TO ENTER. UPON ARRIVAL TECHNICIAN STARTED THE INCIDENT ROOT CAUSE INVESTIGATION. AT 06:26, THE ESD INCIDENT AT STATION 563 WAS DEEMED REPORTABLE DUE TO THE GAS RELEASED VOLUME AND REPORTED ACCORDINGLY. INVESTIGATION RESULTED IN DISCOVERY OF A 3/4-INCH BROKEN NIPPLE ON THE STATION 6-INCH BLOWDOWN PIPING THAT PROMPTED THE STATION TO ESD. TGP OPERATOR REPAIRED THE BROKEN NIPPLE IMMEDIATELY. SAFETY CHECKS AND PRACTICAL REVIEWS WERE CONDUCTED FOR STATION 563, AND WITH SATISFACTORY OBSERVATIONS STATION 563 WAS RETURNED TO NORMAL SERVICE AT 13:28."
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.