Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2011-03-01 — TX
Operator
Tennessee Gas Pipeline Co (El Paso)
Cause
Other Outside Force Damage
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$58,000
Incident datetime
2011-03-01 10:20
Report number
Location
TX
Narrative
Tennessee gas pipeline (tgp) company's aerial patrol of its operations in the gulf of mexico discovered a 10' diameter ring of bubbles in the vicinity of its 30 inch 523m-2300 pipeline. Investigation revealed that a shrimper's net had caught on and broken off a 2" valve in a repair clamp previously installed on the pipe. Divers repaired the leak by installing a new 2" valve. This pipeline was already valved off and inactive from an earlier leak that occurred january 28, 2011. The pipeline is being considered for abandonment.
Detailed record list
Report Received Date
2011-03-29 00:00:00
Iyear
2011
Report Number
20110037
Supplemental Number
15406
Report Type
Supplemental Final
Operator Id
19160
Name
Tennessee Gas Pipeline Co (El Paso)
Operator Street Address
1001 Louisiana St
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2011-03-01 10:20:00
Location Latitude
28.316666
Location Longitude
-91.411111
Nrc Rpt Num
968846
Nrc Rpt Datetime
2011-03-01 11:55:00
Commodity Released Type
Natural Gas
Unintentional Release
1.9
Intentional Release
0
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
No
Shutdown Explain
Pipeline Was Already Shut In Due To Another Leak On January 28, 2011.
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2011-03-01 10:20:00
On Site Datetime
2011-03-02 02:00:00
On Off Shore
Offshore
Off Water Depth
244
Off Accident Origin
On The Outer Continental Shelf (Ocs)
Off Ocs Area
Eugene Island
Off Ocs Block
302
Off Area Accident Type
Below Water, Pipe On Or Above Seabed
Pipe Facility Type
Interstate
System Part Involved
Offshore Pipeline, Including Riser And Riser Bend
Item Involved
Repair Sleeve Or Clamp
Installation Year
2010
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Other
Leak Type Other
2" Valve Broke Off In Threads
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
732
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
7
Est Cost Intentional Release
0
Est Cost Prop Damage
58000
Est Cost Emergency
1000
Est Cost Other
70000
Est Cost Other Details
Sandbags
Prpty
129007
Accident Psig
247
Mop Psig
1250
Mop Cfr Section
Not On Omb-Approved Form When Submitted
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Manual
Length Segment Isolated
168960
Internal Inspection Ind
No
Other Inspection Ind
Yes
Internal Inspection Details
All Facilities Subsea, No Above Surface Launchers & Receivers.
Operation Complications Ind
Yes
Low Flow Ind
Yes
Pipeline Function
Transmission System
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
No
Scada Conf Ind
No
Accident Identifier
Air Patrol
Operator Type
Operator Employee
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
No abnormal pressure concerns.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Other Outside Force Damage
Cause Details
Routine Or Normal Fishing Or Other Maritime Activity Not Engaged In Excavation
Outside Force Type
Routine Or Normal Fishing Or Other Maritime Activity Not Engaged In Excavation
Preparer Name
K****** C P*****
Preparer Title
Manager - Dot Compliance Field Support
Preparer Email
K*********@e*****.com
Preparer Telephone
2043257554
Preparer Fax
2053253729
Authorizer Name
K****** C P*****
Authorizer Title
Manager - Dot Compliance Field Support
Authorizer Telephone
2053257554
Authorizer Email
K*********@e*****.com
Narrative
Tennessee gas pipeline (tgp) company's aerial patrol of its operations in the gulf of mexico discovered a 10' diameter ring of bubbles in the vicinity of its 30 inch 523m-2300 pipeline. Investigation revealed that a shrimper's net had caught on and broken off a 2" valve in a repair clamp previously installed on the pipe. Divers repaired the leak by installing a new 2" valve. This pipeline was already valved off and inactive from an earlier leak that occurred january 28, 2011. The pipeline is being considered for abandonment.
| Report Received Date | 2011-03-29 00:00:00 |
|---|---|
| Iyear | 2011 |
| Report Number | 20110037 |
| Supplemental Number | 15406 |
| Report Type | Supplemental Final |
| Operator Id | 19160 PHMSA Enforcement |
| Name | Tennessee Gas Pipeline Co (El Paso) |
| Operator Street Address | 1001 Louisiana St |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2011-03-01 10:20:00 |
| Location Latitude | 28.316666 Google Maps OpenStreetMap |
| Location Longitude | -91.411111 Google Maps OpenStreetMap |
| Nrc Rpt Num | 968846 NRC Report How to search |
| Nrc Rpt Datetime | 2011-03-01 11:55:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 1.9 |
| Intentional Release | 0 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Pipeline Was Already Shut In Due To Another Leak On January 28, 2011. |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2011-03-01 10:20:00 |
| On Site Datetime | 2011-03-02 02:00:00 |
| On Off Shore | Offshore |
| Off Water Depth | 244 |
| Off Accident Origin | On The Outer Continental Shelf (Ocs) |
| Off Ocs Area | Eugene Island |
| Off Ocs Block | 302 |
| Off Area Accident Type | Below Water, Pipe On Or Above Seabed |
| Pipe Facility Type | Interstate |
| System Part Involved | Offshore Pipeline, Including Riser And Riser Bend |
| Item Involved | Repair Sleeve Or Clamp |
| Installation Year | 2010 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Other |
| Leak Type Other | 2" Valve Broke Off In Threads |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 732 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 7 |
| Est Cost Intentional Release | 0 |
| Est Cost Prop Damage | 58000 |
| Est Cost Emergency | 1000 |
| Est Cost Other | 70000 |
| Est Cost Other Details | Sandbags |
| Prpty | 129007 |
| Accident Psig | 247 |
| Mop Psig | 1250 |
| Mop Cfr Section | Not On Omb-Approved Form When Submitted View CFR 49 §192 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Pressure Restriction Ind | No |
| Upstream Valve Type Ind | Manual |
| Downstream Valve Type Ind | Manual |
| Length Segment Isolated | 168960 |
| Internal Inspection Ind | No |
| Other Inspection Ind | Yes |
| Internal Inspection Details | All Facilities Subsea, No Above Surface Launchers & Receivers. |
| Operation Complications Ind | Yes |
| Low Flow Ind | Yes |
| Pipeline Function | Transmission System |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | No |
| Scada Conf Ind | No |
| Accident Identifier | Air Patrol |
| Operator Type | Operator Employee |
| 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 | No abnormal pressure concerns. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Other Outside Force Damage |
| Cause Details | Routine Or Normal Fishing Or Other Maritime Activity Not Engaged In Excavation |
| Outside Force Type | Routine Or Normal Fishing Or Other Maritime Activity Not Engaged In Excavation |
| Preparer Name | K****** C P***** |
| Preparer Title | Manager - Dot Compliance Field Support |
| Preparer Email | K*********@e*****.com |
| Preparer Telephone | 2043257554 |
| Preparer Fax | 2053253729 |
| Authorizer Name | K****** C P***** |
| Authorizer Title | Manager - Dot Compliance Field Support |
| Authorizer Telephone | 2053257554 |
| Authorizer Email | K*********@e*****.com |
| Narrative | Tennessee gas pipeline (tgp) company's aerial patrol of its operations in the gulf of mexico discovered a 10' diameter ring of bubbles in the vicinity of its 30 inch 523m-2300 pipeline. Investigation revealed that a shrimper's net had caught on and broken off a 2" valve in a repair clamp previously installed on the pipe. Divers repaired the leak by installing a new 2" valve. This pipeline was already valved off and inactive from an earlier leak that occurred january 28, 2011. The pipeline is being considered for abandonment. |
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