ANR PIPELINE CO

gas_transmission Incident —

Incident Information

Report Date
OperatorANR PIPELINE CO
Commodity—
Pipeline Typegas_transmission

Location

State
Coordinates28.97833, -91.85583

Cause

CauseEQUIPMENT FAILURE
Subcause—

Casualties

Fatalities0
Injuries0

Costs

Property Damage
Lost Commodity
Public/Private Damage
Emergency Response
Environmental Remediation
Other Costs

Location Map

Incident Narrative

A LEAK WAS DISCOVERED AT SOUTH MARSH ISLAND BLOCK 287 AS WORK WAS BEGINNING ON THE REPAIR OF A LEAK AT EUGENE ISLAND BLOCK 115. THE LEAK WAS APPARENTLY FOUND NEAR A SUB-SEA AUXILIARY VALVE ON ANR LINE 747. IT WAS TRACED BY A DIVING CREW TO A GREASE FITTING ON THE VALVE. FOLLOWING THE INVESTIGATION, THE REPAIR OF THE VALVE ASSEMBLY WAS PLANNED; THE DE-PRESSURIZATION OF THE PIPELINE WAS CONDUCTED BY VENTING THE GAS FROM THE SMI BLOCK 10 PLATFORM. THE VENTING BEGAN WITH 849 PSIG. ONCE THE PRESSURE ON THE LINE REACHED 23 PSIG., THE LEAKING FITTING ON THE VALVE WAS REPLACED. THE REPAIR WAS COMPLETED ON 2-22-14.

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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