TENNESSEE GAS PIPELINE COMPANY

gas_transmission Incident — — September 21, 2013

Incident Information

Incident DateSeptember 21, 2013
OperatorTENNESSEE GAS PIPELINE COMPANY
CommodityNATURAL GAS
Pipeline Typegas_transmission

Location

State
Coordinates30.43294, -92.87499

Cause

CauseEQUIPMENT FAILURE
SubcauseMALFUNCTION OF CONTROL/RELIEF EQUIPMENT

Casualties

Fatalities0
Injuries0

Costs

Property Damage$500
Emergency Response$0
Other Costs$0

Location Map

Incident Narrative

RELIEF VALVE OPENED PREMATURELY VENTING NATURAL GAS. DID NOT EXCEED MAOP. FOLLOW UP ACTIONS ON THE RELIEF VALVE: 1. INSPECTED AND CLEANED SNAP ACTING PILOT CONTROL VALVE ( SEAT AND VALVE). 2. SNAP ACTING PILOT CONTROL VALVE TOTALLY REBUILT. 3. REPLACED PILOT RANGE SPRING WITH NEW RELEASE SET POINT (601-1001 PSI) TO OPERATE EFFICIENTLY AT PRESSURES IN THIS RANGE. 4. INSPECTED AND CLEAN RELIEF VALVE BODY.

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.

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