MAGELLAN PIPELINE COMPANY, LP
hazardous_liquid Incident —
Incident Information
| Report Date | — |
| Operator | MAGELLAN PIPELINE COMPANY, LP |
| Commodity | — |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 37.81334, -98.78827 |
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 13:52 ON MAY 5TH, 2023 A MAGELLAN OPERATIONS CONTROL CONTROLLER RECEIVED A SEAL LEAK ALARM AND UNIT LOCKOUT ON THE MAINLINE UNIT 2 AT PRATT STATION. UNIT 2 WAS IMMEDIATELY ISOLATED AND THE CONTROLLER CONTACTED LOCAL OPERATIONS TO INVESTIGATE. LOCAL OPERATORS ARRIVED ONSITE AT 14:30, CONFIRMED UNIT 2'S SEAL LEAK, AND INITIATED CLEAN-UP ACTIVITIES. FURTHER INVESTIGATION FOUND BOTH THE INBOARD AND OUTBOARD PUMP SEALS HAD FAILED DUE TO EXCESSIVE MECHANICAL WEAR RESULTING FROM THE FAILURE OF THE THRUST SHIM WASHERS. THIS LIKELY WAS THE RESULT OF NOT PROPERLY SETTING SHAFT END PLAY ON THE ROTATING ASSEMBLY DURING THE INITIAL ALIGNMENT PERFORMED BY THE VENDOR. WHEN THE WASHERS FAILED AND AXIAL SHAFT FLOAT TOLERANCES WERE COMPROMISED, BOTH SEALS WERE ESSENTIALLY ABLE TO FAIL SIMULTANEOUSLY AS A RESULT OF THE EXCESSIVE AXIAL THRUSTING AGAINST THE SEAL FACES. TO PREVENT RE-OCCURRENCE, THE THRUST SHIM WASHERS AS WELL AS THE INBOARD AND OUTBOARD PUMP SEALS WERE REPLACED. SUPPLEMENTAL/FINAL (8/2023): PARTS A, G, 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.