CONSUMERS ENERGY CO

gas_transmission Incident —

Incident Information

Report Date
OperatorCONSUMERS ENERGY CO
Commodity—
Pipeline Typegas_transmission

Location

State
Coordinates41.80188, -85.58652

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

ON MAY 6, 2010, DURING TIE-IN OF THE EMERGENCY FUEL LINE TO A NEW COMPRESSOR UNIT THE 2 INCH VALVE ON THE EMERGENCY FUEL LINE EXPERIENCED AN EQUIPMENT FAILURE. THE 2 INCH VALVE'S TOP PLATE BROKE, ALLOWING THE VALVE STEM TO BE ROTATED PAST THE 1/4 STOP POSITION. THIS IN TURN ALLOWED THE VALVE STEM TO COME OUT OF THE VALVE. TO MAKE THE REPAIR IT WAS NECESSARY TO ISOLATE AND BLOW DOWN APPROXIMATELY 5 MILES OF 30 INCH TRANSMISSION LINE THAT WAS OPERATING AT 595 PSIG. THE REPAIRS WERE COMPLETED ON MAY 8, 2010 AND THE UNIT WAS RETURNED TO SERVICE.

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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