Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2010-07-23 — OK
Operator
Magellan Ammonia Pipeline, L.p.
Cause
Material Failure Of Pipe Or Weld
Commodity
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$113,311
Incident datetime
2010-07-23 14:05
Report number
Location
OK
Narrative
Welder was tacking a tor fitting onto the line to assist in relieving vapors in the pipe as part of the process of emptying contents of pipe in preparation for conducting a hydrostatic test of the pipeline segment when the pipe began moving and making a noise. The pipe subsequently emerged from the excavated trench and bowed, creaking a crack on the bottom of the pipe. The pipe segment was removed from the line and sent for metallurgical analysis. Repair was made by installing a new piece of pipe and the hydrostatic test continued.
Detailed record list
Report Received Date
2010-08-19 00:00:00
Iyear
2010
Report Number
20100179
Supplemental Number
15904
Report Type
Supplemental Final
Operator Id
12105
Name
Magellan Ammonia Pipeline, L.p.
Operator Street Address
One Williams Center, Otc-9 P.o. Box 22186
Operator City Name
Tulsa
Operator State Abbreviation
OK
Operator Postal Code
74172
Local Datetime
2010-07-23 14:05:00
Location Latitude
40.36468
Location Longitude
-96.65431
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Anhydrous Ammonia
Unintentional Release Bbls
0.36
Intentional Release Bbls
0.12
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Contractor Working For The Operator
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
Line Had Been Down Since June 15 For Hydrostatic Testing
Nrc Rpt Datetime
2010-07-23 14:39:00
Nrc Rpt Num
948671
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Manual
Num Pub Evacuated
9
Pipe Fac Name
Anhydrous Ammonia Pipeline
Segment Name
Line Segment 501
Onshore State Abbreviation
Ne
Onshore Postal Code
68422-8125
Onshore City Name
Pickrell
Onshore County Name
Gage
Designated Location
Milepost/valve Station
Designated Name
153.4
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
48
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
8.625
Pipe Wall Thickness
0.156
Pipe Smys
46000
Pipe Specification
Api 5lx-46
Pipe Seam Type
Erw - Low Frequency
Pipe Manufacturer
Lone Star Steel
Pipe Coating Type
Cold Applied Tape
Installation Year
1968
Manufactured Year
1968
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
Buckle That Resulted In A Release
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
No
Could Be Hca
No
Commodity Reached Hca
No
Est Cost Oper Paid
2500
Est Cost Gas Released
50
Est Cost Prop Damage
113311
Est Cost Emergency
41800
Est Cost Environmental
5000
Est Cost Other
500
Est Cost Other Details
Lodging And Food For Evacuees While Away From Their Homes
Prpty
163161
Accident Psig
633
Mop Psig
1198
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
Yes
Exceed Restriction Ind
No
Phmsa Restriction Ind
Phmsa
Length Segment Isolated
44526
Internal Inspection Ind
Yes
Operation Complications Ind
No
Pipeline Function
> 20% Smys Regulated Transmission
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
No
Scada Conf Ind
No
Cpm In Place Ind
Yes
Cpm Operating Ind
Yes
Cpm Functional Ind
Yes
Cpm Detection Ind
No
Cpm Conf Ind
No
Investigation Status
No, the operator did not find that an investigation of the controller(s) actions or control room issues was necessary due to: (provide an explanation for why the operator did not investigate)
Investigation Status Details
This section of the liine was out of service due to hydrostatic testing at the time the release occurred. The controller was not involved in monitoring or operating the line during the hydrostatic test.
Employee Drug Test Ind
No
Contractor Drug Test Ind
Yes
Num Contractors Tested
1
Num Contractors Failed
0
Cause
Material Failure Of Pipe Or Weld
Cause Details
Design-, Construction-, Installation-, Or Fabrication-Related
Metallurgical Ind
Yes
Failure Type
Design-, Construction-, Installation-, Or Fabrication-Related
Other Factor
Yes
Other Factor Details
Ductile Failure Due To Inherent Stress In The Line Caused During Construction
Additional Buckle Ind
Yes
Collected Data Ind
Yes
Axial Magnetic Flx Lkg Ind
Yes
Geometry Deformation Ind
Yes
Axial Recent Year
2006
Geometry Recent Year
2006
Has Hydrtst Conduc Before Ind
No
Direct Asmnt Conducted
No
Non Destructive Exam Ind
No
Preparer Name
D******* C*********
Prepared Date
2011-06-30 00:00:00
Authorizer Name
D******* C*********
Authorizer Telephone
918-574-7386
Authorizer Title
Sr. Compliance Coordinator
Narrative
Welder was tacking a tor fitting onto the line to assist in relieving vapors in the pipe as part of the process of emptying contents of pipe in preparation for conducting a hydrostatic test of the pipeline segment when the pipe began moving and making a noise. The pipe subsequently emerged from the excavated trench and bowed, creaking a crack on the bottom of the pipe. The pipe segment was removed from the line and sent for metallurgical analysis. Repair was made by installing a new piece of pipe and the hydrostatic test continued.
| Report Received Date | 2010-08-19 00:00:00 |
|---|---|
| Iyear | 2010 |
| Report Number | 20100179 |
| Supplemental Number | 15904 |
| Report Type | Supplemental Final |
| Operator Id | 12105 PHMSA Enforcement |
| Name | Magellan Ammonia Pipeline, L.p. |
| Operator Street Address | One Williams Center, Otc-9 P.o. Box 22186 |
| Operator City Name | Tulsa |
| Operator State Abbreviation | OK |
| Operator Postal Code | 74172 |
| Local Datetime | 2010-07-23 14:05:00 |
| Location Latitude | 40.36468 Google Maps OpenStreetMap |
| Location Longitude | -96.65431 Google Maps OpenStreetMap |
| Commodity Released Type | Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions |
| Commodity Subtype | Anhydrous Ammonia |
| Unintentional Release Bbls | 0.36 |
| Intentional Release Bbls | 0.12 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Contractor Working For The Operator |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Line Had Been Down Since June 15 For Hydrostatic Testing |
| Nrc Rpt Datetime | 2010-07-23 14:39:00 |
| Nrc Rpt Num | 948671 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Upstream Valve Type Ind | Manual |
| Downstream Valve Type Ind | Manual |
| Num Pub Evacuated | 9 |
| Pipe Fac Name | Anhydrous Ammonia Pipeline |
| Segment Name | Line Segment 501 |
| Onshore State Abbreviation | Ne |
| Onshore Postal Code | 68422-8125 |
| Onshore City Name | Pickrell |
| Onshore County Name | Gage |
| Designated Location | Milepost/valve Station |
| Designated Name | 153.4 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 48 |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 8.625 |
| Pipe Wall Thickness | 0.156 |
| Pipe Smys | 46000 |
| Pipe Specification | Api 5lx-46 |
| Pipe Seam Type | Erw - Low Frequency |
| Pipe Manufacturer | Lone Star Steel |
| Pipe Coating Type | Cold Applied Tape |
| Installation Year | 1968 |
| Manufactured Year | 1968 |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | Buckle That Resulted In A Release |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | No |
| Could Be Hca | No |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 2500 |
| Est Cost Gas Released | 50 |
| Est Cost Prop Damage | 113311 |
| Est Cost Emergency | 41800 |
| Est Cost Environmental | 5000 |
| Est Cost Other | 500 |
| Est Cost Other Details | Lodging And Food For Evacuees While Away From Their Homes |
| Prpty | 163161 |
| Accident Psig | 633 |
| Mop Psig | 1198 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | Yes |
| Exceed Restriction Ind | No |
| Phmsa Restriction Ind | Phmsa |
| Length Segment Isolated | 44526 |
| Internal Inspection Ind | Yes |
| Operation Complications Ind | No |
| Pipeline Function | > 20% Smys Regulated Transmission |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | No |
| Scada Conf Ind | No |
| Cpm In Place Ind | Yes |
| Cpm Operating Ind | Yes |
| Cpm Functional Ind | Yes |
| Cpm Detection Ind | No |
| Cpm Conf Ind | No |
| Investigation Status | No, the operator did not find that an investigation of the controller(s) actions or control room issues was necessary due to: (provide an explanation for why the operator did not investigate) |
| Investigation Status Details | This section of the liine was out of service due to hydrostatic testing at the time the release occurred. The controller was not involved in monitoring or operating the line during the hydrostatic test. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | Yes |
| Num Contractors Tested | 1 |
| Num Contractors Failed | 0 |
| Cause | Material Failure Of Pipe Or Weld |
| Cause Details | Design-, Construction-, Installation-, Or Fabrication-Related |
| Metallurgical Ind | Yes |
| Failure Type | Design-, Construction-, Installation-, Or Fabrication-Related |
| Other Factor | Yes |
| Other Factor Details | Ductile Failure Due To Inherent Stress In The Line Caused During Construction |
| Additional Buckle Ind | Yes |
| Collected Data Ind | Yes |
| Axial Magnetic Flx Lkg Ind | Yes |
| Geometry Deformation Ind | Yes |
| Axial Recent Year | 2006 |
| Geometry Recent Year | 2006 |
| Has Hydrtst Conduc Before Ind | No |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | No |
| Preparer Name | D******* C********* |
| Prepared Date | 2011-06-30 00:00:00 |
| Authorizer Name | D******* C********* |
| Authorizer Telephone | 918-574-7386 |
| Authorizer Title | Sr. Compliance Coordinator |
| Narrative | Welder was tacking a tor fitting onto the line to assist in relieving vapors in the pipe as part of the process of emptying contents of pipe in preparation for conducting a hydrostatic test of the pipeline segment when the pipe began moving and making a noise. The pipe subsequently emerged from the excavated trench and bowed, creaking a crack on the bottom of the pipe. The pipe segment was removed from the line and sent for metallurgical analysis. Repair was made by installing a new piece of pipe and the hydrostatic test continued. |
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