Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2012-03-23 — TX
Operator
Tennessee Gas Pipeline Co (El Paso)
Cause
Material Failure Of Pipe Or Weld
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$1,114,825
Incident datetime
2012-03-23 15:45
Report number
Location
TX
Narrative
Anr pipeline company personnel notified tennessee gas pipeline (tgp) personnel of a sheen measuring 3 miles long and 1/4 mile wide in the vicinity of tgp's 24" 523m-3700 pipeline on the ocs in eugene island block 241. Tgp investigated and observed the sheen with bubbles. Dispatched divers determined that tgp's line was leaking through a pinhole in a girth weld. The leak was repaired by installing a clamp and the pipeline was placed back into service. Year of pipe manufacture is assumed to be commensurate with year of installation
Detailed record list
Report Received Date
2012-04-12 00:00:00
Iyear
2012
Report Number
20120037
Supplemental Number
16137
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
2012-03-23 15:45:00
Location Latitude
28.53833
Location Longitude
-91.665
Nrc Rpt Num
1006716
Nrc Rpt Datetime
2012-03-23 16:45:00
Commodity Released Type
Natural Gas
Unintentional Release
413
Intentional Release
4980
Accompanying Liquid
50
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2012-03-23 17:18:00
Restart Datetime
2012-04-07 16:45:00
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2012-03-23 15:45:00
On Site Datetime
2012-03-24 11:24:00
On Off Shore
Offshore
Off Water Depth
150
Off Accident Origin
On The Outer Continental Shelf (Ocs)
Off Ocs Area
Eugene Island
Off Ocs Block
241
Off Area Accident Type
Below Water, Pipe Buried Or Jetted Below Seabed
Pipe Facility Type
Interstate
System Part Involved
Offshore Pipeline, Including Riser And Riser Bend
Item Involved
Weld/fusion, Including Heat-Affected Zone
Pipe Diameter
24
Pipe Wall Thickness
0.438
Pipe Smys
60000
Pipe Specification
Api 5lx
Pipe Seam Type
Dsaw
Pipe Manufacturer
Us Steel
Pipe Coating Type
Coal Tar
Weld Subtype
Pipe Girth Weld
Installation Year
1975
Manufactured Year
1975
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Pinhole
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
585
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
826
Est Cost Intentional Release
9960
Est Cost Prop Damage
1114825
Est Cost Emergency
50000
Est Cost Other
0
Prpty
1175611
Accident Psig
914
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
25872
Internal Inspection Ind
No
Diameter Change Ind
Yes
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
Other
Accident Details
Another Pipeline Operator's Local Personnel
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
Pressures were within normal operating ranges; no abnormal excursions.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Material Failure Of Pipe Or Weld
Cause Details
Design-, Construction-, Installation-, Or Fabrication-Related
Pwjf Failure Type
Design-, Construction-, Installation-, Or Fabrication-Related
Field Exam Ind
Yes
Other Factor
Yes
Other Factor Details
Weld Defect During Original Construction.
Additional Lack Fusion Ind
Yes
Collected Data Ind
No
Has Hydrtst Conduc Before Ind
No
Direct Asmnt Conducted
No
Non Destructive Exam Ind
No
Preparer Name
Z****** R*****
Preparer Title
Engineer - Pipeline
Preparer Email
Z*************@k***********.com
Preparer Telephone
7134206633
Preparer Fax
7134206633
Authorizer Name
Z****** R*****
Authorizer Title
Engineer - Pipeline
Authorizer Telephone
7134206633
Authorizer Email
Z*************@k***********.com
Narrative
Anr pipeline company personnel notified tennessee gas pipeline (tgp) personnel of a sheen measuring 3 miles long and 1/4 mile wide in the vicinity of tgp's 24" 523m-3700 pipeline on the ocs in eugene island block 241. Tgp investigated and observed the sheen with bubbles. Dispatched divers determined that tgp's line was leaking through a pinhole in a girth weld. The leak was repaired by installing a clamp and the pipeline was placed back into service. Year of pipe manufacture is assumed to be commensurate with year of installation
| Report Received Date | 2012-04-12 00:00:00 |
|---|---|
| Iyear | 2012 |
| Report Number | 20120037 |
| Supplemental Number | 16137 |
| 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 | 2012-03-23 15:45:00 |
| Location Latitude | 28.53833 Google Maps OpenStreetMap |
| Location Longitude | -91.665 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1006716 NRC Report How to search |
| Nrc Rpt Datetime | 2012-03-23 16:45:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 413 |
| Intentional Release | 4980 |
| Accompanying Liquid | 50 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2012-03-23 17:18:00 |
| Restart Datetime | 2012-04-07 16:45:00 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2012-03-23 15:45:00 |
| On Site Datetime | 2012-03-24 11:24:00 |
| On Off Shore | Offshore |
| Off Water Depth | 150 |
| Off Accident Origin | On The Outer Continental Shelf (Ocs) |
| Off Ocs Area | Eugene Island |
| Off Ocs Block | 241 |
| Off Area Accident Type | Below Water, Pipe Buried Or Jetted Below Seabed |
| Pipe Facility Type | Interstate |
| System Part Involved | Offshore Pipeline, Including Riser And Riser Bend |
| Item Involved | Weld/fusion, Including Heat-Affected Zone |
| Pipe Diameter | 24 |
| Pipe Wall Thickness | 0.438 |
| Pipe Smys | 60000 |
| Pipe Specification | Api 5lx |
| Pipe Seam Type | Dsaw |
| Pipe Manufacturer | Us Steel |
| Pipe Coating Type | Coal Tar |
| Weld Subtype | Pipe Girth Weld |
| Installation Year | 1975 |
| Manufactured Year | 1975 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Pinhole |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 585 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 826 |
| Est Cost Intentional Release | 9960 |
| Est Cost Prop Damage | 1114825 |
| Est Cost Emergency | 50000 |
| Est Cost Other | 0 |
| Prpty | 1175611 |
| Accident Psig | 914 |
| 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 | 25872 |
| Internal Inspection Ind | No |
| Diameter Change Ind | Yes |
| 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 | Other |
| Accident Details | Another Pipeline Operator's Local Personnel |
| 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 | Pressures were within normal operating ranges; no abnormal excursions. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Material Failure Of Pipe Or Weld |
| Cause Details | Design-, Construction-, Installation-, Or Fabrication-Related |
| Pwjf Failure Type | Design-, Construction-, Installation-, Or Fabrication-Related |
| Field Exam Ind | Yes |
| Other Factor | Yes |
| Other Factor Details | Weld Defect During Original Construction. |
| Additional Lack Fusion Ind | Yes |
| Collected Data Ind | No |
| Has Hydrtst Conduc Before Ind | No |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | No |
| Preparer Name | Z****** R***** |
| Preparer Title | Engineer - Pipeline |
| Preparer Email | Z*************@k***********.com |
| Preparer Telephone | 7134206633 |
| Preparer Fax | 7134206633 |
| Authorizer Name | Z****** R***** |
| Authorizer Title | Engineer - Pipeline |
| Authorizer Telephone | 7134206633 |
| Authorizer Email | Z*************@k***********.com |
| Narrative | Anr pipeline company personnel notified tennessee gas pipeline (tgp) personnel of a sheen measuring 3 miles long and 1/4 mile wide in the vicinity of tgp's 24" 523m-3700 pipeline on the ocs in eugene island block 241. Tgp investigated and observed the sheen with bubbles. Dispatched divers determined that tgp's line was leaking through a pinhole in a girth weld. The leak was repaired by installing a clamp and the pipeline was placed back into service. Year of pipe manufacture is assumed to be commensurate with year of installation |
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