Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2011-04-20 — OK
Operator
Magellan Ammonia Pipeline, L.p.
Cause
Equipment Failure
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)
$13,000
Incident datetime
2011-04-20 20:05
Report number
Location
OK
Narrative
While conducting the semi-annual mainline valve inspection, a magellan technician saw what appeared to be dead vegetation near the valve. The pipeline was excavated and a stopple fitting was discovered to be leaking at the o-ring seals on the stopple segments. Temporary repair was made to the stopple and flange. A permanent repair was subsequently made by removing the stopples and installing a segment of new pipe which was hydrostatically tested without failure.
Detailed record list
Report Received Date
2011-05-20 00:00:00
Iyear
2011
Report Number
20110144
Supplemental Number
16032
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
2011-04-20 20:05:00
Location Latitude
39.080486
Location Longitude
-97.35301
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Anhydrous Ammonia
Unintentional Release Bbls
15
Intentional Release Bbls
0
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2011-04-20 20:05:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2011-04-20 20:05:00
Restart Datetime
2011-04-20 23:05:00
On Site Datetime
2011-04-20 20:05:00
Nrc Rpt Datetime
2011-04-20 20:05:00
Nrc Rpt Num
973611
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Remotely Controlled
Pipe Fac Name
Anhydrous Ammonia West Leg
Segment Name
Abilene To Clay Center Line Segment
Onshore State Abbreviation
Ks
Onshore Postal Code
67410
Onshore City Name
Manchester
Onshore County Name
Dickinson
Designated Location
Milepost/valve Station
Designated Name
56
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
84
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Tap Fitting(Stopple, Thread-O-Ring, Weld-O-Let, Etc.)
Installation Year
1996
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Seal Or Packing
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
Yes
Soil Remed Ind
Yes
Water Contam Ind
No
Could Be Hca
No
Commodity Reached Hca
No
Est Cost Oper Paid
1000
Est Cost Gas Released
1125
Est Cost Prop Damage
13000
Est Cost Emergency
1000
Est Cost Environmental
25000
Est Cost Other
0
Prpty
41125
Accident Psig
744
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
21120
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
Yes
Scada Conf Ind
Yes
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
Release was on a stopple fitting and did not occur from the actions of the controllers
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Malfunction Of Control/relief Equipment
Eq Failure Type
Malfunction Of Control/relief Equipment
Stopple Control Fitting Ind
Yes
Eq Additional Other Ind
Yes
Eq Additional Other Details
O-Ring Seales Leaked On Stopple Segments
Preparer Name
K****** L* L*******
Preparer Title
Senior Compliance Coordinator
Preparer Email
K***********@m*********.com
Preparer Telephone
918-574-7315
Preparer Fax
918-574-7245
Prepared Date
2011-09-07 00:00:00
Authorizer Name
K****** L* L*******
Authorizer Telephone
918-574-7315
Authorizer Title
Senior Compliance Coordinator
Authorizer Email
K***********@m*********.com
Narrative
While conducting the semi-annual mainline valve inspection, a magellan technician saw what appeared to be dead vegetation near the valve. The pipeline was excavated and a stopple fitting was discovered to be leaking at the o-ring seals on the stopple segments. Temporary repair was made to the stopple and flange. A permanent repair was subsequently made by removing the stopples and installing a segment of new pipe which was hydrostatically tested without failure.
| Report Received Date | 2011-05-20 00:00:00 |
|---|---|
| Iyear | 2011 |
| Report Number | 20110144 |
| Supplemental Number | 16032 |
| 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 | 2011-04-20 20:05:00 |
| Location Latitude | 39.080486 Google Maps OpenStreetMap |
| Location Longitude | -97.35301 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 | 15 |
| Intentional Release Bbls | 0 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2011-04-20 20:05:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2011-04-20 20:05:00 |
| Restart Datetime | 2011-04-20 23:05:00 |
| On Site Datetime | 2011-04-20 20:05:00 |
| Nrc Rpt Datetime | 2011-04-20 20:05:00 |
| Nrc Rpt Num | 973611 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Upstream Valve Type Ind | Manual |
| Downstream Valve Type Ind | Remotely Controlled |
| Pipe Fac Name | Anhydrous Ammonia West Leg |
| Segment Name | Abilene To Clay Center Line Segment |
| Onshore State Abbreviation | Ks |
| Onshore Postal Code | 67410 |
| Onshore City Name | Manchester |
| Onshore County Name | Dickinson |
| Designated Location | Milepost/valve Station |
| Designated Name | 56 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 84 |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Tap Fitting(Stopple, Thread-O-Ring, Weld-O-Let, Etc.) |
| Installation Year | 1996 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Seal Or Packing |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | No |
| Remediation Ind | Yes |
| Soil Remed Ind | Yes |
| Water Contam Ind | No |
| Could Be Hca | No |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 1000 |
| Est Cost Gas Released | 1125 |
| Est Cost Prop Damage | 13000 |
| Est Cost Emergency | 1000 |
| Est Cost Environmental | 25000 |
| Est Cost Other | 0 |
| Prpty | 41125 |
| Accident Psig | 744 |
| 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 | 21120 |
| 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 | Yes |
| Scada Conf Ind | Yes |
| 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 | Release was on a stopple fitting and did not occur from the actions of the controllers |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Malfunction Of Control/relief Equipment |
| Eq Failure Type | Malfunction Of Control/relief Equipment |
| Stopple Control Fitting Ind | Yes |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | O-Ring Seales Leaked On Stopple Segments |
| Preparer Name | K****** L* L******* |
| Preparer Title | Senior Compliance Coordinator |
| Preparer Email | K***********@m*********.com |
| Preparer Telephone | 918-574-7315 |
| Preparer Fax | 918-574-7245 |
| Prepared Date | 2011-09-07 00:00:00 |
| Authorizer Name | K****** L* L******* |
| Authorizer Telephone | 918-574-7315 |
| Authorizer Title | Senior Compliance Coordinator |
| Authorizer Email | K***********@m*********.com |
| Narrative | While conducting the semi-annual mainline valve inspection, a magellan technician saw what appeared to be dead vegetation near the valve. The pipeline was excavated and a stopple fitting was discovered to be leaking at the o-ring seals on the stopple segments. Temporary repair was made to the stopple and flange. A permanent repair was subsequently made by removing the stopples and installing a segment of new pipe which was hydrostatically tested without failure. |
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