MAGELLAN PIPELINE COMPANY, LP
hazardous_liquid Incident —
Incident Information
| Report Date | — |
| Operator | MAGELLAN PIPELINE COMPANY, LP |
| Commodity | — |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 44.73290, -93.19669 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | — |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | — |
| Lost Commodity | — |
| Public/Private Damage | — |
| Emergency Response | — |
| Environmental Remediation | — |
| Other Costs | — |
Location Map
Incident Narrative
AT 22:50 ON OCTOBER 31, 2020 MAGELLAN OPERATIONS PERSONNEL DISCOVERED PRODUCT LEAKING FROM A CRACKED NIPPLE ON A SAMPLE PORT. WHILE ISOLATING THE LINE, THE NIPPLE COMPLETELY FAILED AND ADDITIONAL PRODUCT WAS RELEASED. METALLURGICAL ANALYSIS INDICATES THAT THE NIPPLE FAILURE OCCURRED IN STAGES. CORROSION OCCURRED AT THE ROOT OF THE THREAD AND AN UNKNOWN EVENT CAUSED A PARTIAL FRACTURE OF THE NIPPLE. THIS INITIAL FRACTURE WAS EXPOSED TO THE ENVIRONMENT AND ADDITIONAL CORROSION OCCURRED AT THE FRACTURE SURFACE. THE FINAL BRITTLE FRACTURE OF THE NIPPLE OCCURRED JUST BEFORE OR WHEN THE OPERATOR ATTEMPTED TO SHUT THE VALVE ON OCTOBER 31ST. NO EVIDENCE OF FATIGUE CRACK GROWTH WAS FOUND. SUPPLEMENTAL/FINAL 2/16/2021- UPDATED G6, PART H.
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.