"MAGELLAN PIPELINE COMPANY, LP"

hazardous_liquid Incident — — May 12, 2017

Incident Information

Incident DateMay 12, 2017
Operator"MAGELLAN PIPELINE COMPANY, LP"
CommodityREFINED AND/OR PETROLEUM PRODUCT (NON-HVL) WHICH IS A LIQUID
Pipeline Typehazardous_liquid

Location

State
Coordinates34.77704, -92.17866

Cause

CauseEQUIPMENT FAILURE
SubcauseNON-THREADED CONNECTION FAILURE

Casualties

Fatalities0
Injuries0

Costs

Property Damage$0
Emergency Response$25,962
Other Costs$0

Location Map

Incident Narrative

"THE RELEASE ORIGINATED FROM A FAILED O-RING ON A HAMMER UNION FITTING LOCATED ON THE FILTRATION SYSTEM. IMMEDIATELY PRECEDING THE RELEASE, THE FACILITY EXPERIENCED A POWER FAILURE. THE POWER FAILURE CAUSED THE ""ACTIVE LINEUP"" STATUS TO BE REMOVED IN THE PLC. WHEN POWER WAS RESTORED, PLC PROGRAMMING CAUSED TWO STATION VALVES TO CLOSE DOWNSTREAM OF THE FILTER SYSTEM. PRESSURE TRANSMITTERS DID NOT RECORD AN EXCEEDANCE OF MOP. SOIL FROM THE RELEASE AREA WAS REMEDIATED. THE O-RING IN THE HAMMER UNION WAS REPLACED AND THE SYSTEM WAS HYDROTESTED PRIOR TO RETURNING TO SERVICE. FOLLOWING THE RELEASE, PLC PROGRAMMING WAS MODIFIED TO PREVENT THE VALVES FROM CLOSING WHEN AN ""ACTIVE LINEUP"" STATUS IS REMOVED DURING A POWER OUTAGE. SUPPLEMENTAL SUBMITTED TO REMOVE NRC NUMBER AS NO REPORT WAS REQUIRED. SECOND SUPPLEMENTAL SUBMITTED TO ADD THIS EXPLANATION TO WHAT WAS CHANGED ON FIRST SUPPLEMENTAL."

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.

Back to All Incidents More Incidents in