Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2015-11-03 — TX
Operator
Texas Eastern Transmission Lp (Spectra Energy Corp)
Cause
Material Failure Of Pipe Or Weld
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$122,000
Incident datetime
2015-11-03 09:30
Report number
Location
TX
Narrative
Company employees discovered a leak due to a crack in a girth weld near the 6 o'clock position on texas eastern transmission, lp 24-inch line 11 near onalaska, texas at 9:30 am november 3, 2015. The leak was the result of a 4" crack at the edge of the girth weld. The crack was in the heat affected zone (haz) at the 6 o'clock pipe position. Pipe containing leak was replaced and line is back in service. Metallurgical testing indicated that the crack was due to hydrogen induced cracking (hic). Supplemental 3/17/2020 updated part g5-metallurgical investigation complete
Detailed record list
Report Received Date
2015-12-02 00:00:00
Iyear
2015
Report Number
20150142
Supplemental Number
33580
Report Type
Supplemental Final
Operator Id
19235
Name
Texas Eastern Transmission Lp (Spectra Energy Corp)
Operator Street Address
915 North Eldridge Parkway
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77079
Local Datetime
2015-11-03 09:30:00
Time Zone
Central
Daylight Savings Ind
No
Location Latitude
30.86818206
Location Longitude
-95.09961628
Nrc Rpt Num
1132445
Nrc Rpt Datetime
2015-11-03 10:15:00
Commodity Released Type
Natural Gas
Unintentional Release
1
Intentional Release
12491
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Status When Identified
Normal Operation, Includes Pauses During Maintenance
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2015-11-03 20:14:00
Restart Datetime
2015-11-05 17:30:00
Communication State Fed Ind
No
Ignite Ind
No
Upstream Action Taken
Valve Closure
Upstream Valve Close Datetime
2015-11-03 20:14:00
Downstream Action Taken
Valve Closure
Downstream Vlv Close Datetime
2015-11-03 20:14:00
Num Pub Evacuated
0
Incident Identified Datetime
2015-11-03 09:30:00
On Site Datetime
2015-11-03 09:30:00
On Off Shore
Onshore
Onshore State Abbreviation
Tx
Onshore Postal Code
77360
Onshore City Name
Not Within A Municipality
Onshore County Name
Polk
Designated Location
Milepost
Designated Name
144.0
Pipe Fac Name
Line 11
Segment Name
Hunt-Lufk
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
30
Other Underground Facilities
No
Crossing
No
Pipe Facility Type
Interstate
System Part Involved
Onshore Pipeline, Including Valve Sites
Item Involved
Weld/fusion, Including Heat-Affected Zone
Pipe Diameter
24
Pipe Wall Thickness
0.312
Pipe Smys
52000
Pipe Specification
Api-5lx
Pipe Seam Type
Flash Welded
Pipe Manufacturer
Ao Smith
Pipe Coating Type
Coal Tar
Coating Applied Ind
Unknown
Weld Subtype
Pipe Girth Weld
Different Girth Weld Ind
No
Installation Year
1954
Manufactured Year
1954
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Crack
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
517
Heat Damage Ind
No
Non Heat Damage Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
3
Est Cost Intentional Release
31229
Est Cost Prop Damage
122000
Est Cost Emergency
0
Est Cost Other
0
Gas Cost In Mcf
2.5001
Prpty
153232
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Wildlife Impact Ind
No
Accident Psig
691
Gas Flow In Pipe In Mcf
80000
Mop Psig
973
Mop Cfr Section
192.619(C)
Maop Established Date
2015-05-01 00:00:00
Maop Reversal Flow Ind
Yes
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Gas Required Odorized Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Manual
Length Segment Isolated
85843
Internal Inspection Ind
Yes
Operation Complications Ind
No
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
Local Operating Personnel, Including Contractors
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
The release of gas was too small to be detected by scada.
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
Metallurgical Ind
Yes
Other Factor
Yes
Other Factor Details
Hydrogen Induced Cracking
Additional Crack Ind
Yes
Post Constr Pressure Test Val
1308
Collected Data Ind
Yes
Axial Magnetic Flx Lkg Ind
Yes
Geometry Deformation Ind
Yes
Axial Recent Year
2012
Axial Rcnt Propul Method
Free Swimming
Axial Rcnt Attuned Detect
Metal Loss
Axial Rcnt Atnd Dtct Metal
High Resolution
Axial Previous Year
2005
Axial Prev Propul Method
Free Swimming
Axial Prev Attuned Detect
Metal Loss
Axial Prev Atnd Dtct Metal
High Resolution
Geometry Recent Year
2012
Geometry Rcnt Propul Method
Free Swimming
Geometry Rcnt Resolution
High Resolution
Geometrt Rcnt Measur Cups
No Cups
Has Hydrtst Conduc Before Ind
No
Direct Asmnt Conducted
Yes, But The Point Of The Accident Was Not Identified As A Dig Site
Direct Asmnt Pnt Not Idntf Yr
2010
Asmnt Ecda Rcnt Year
2010
Asmnt Icda Rcnt Year
2010
Asmnt Ecda Rcnt Ind
Yes
Asmnt Icda Rcnt Ind
Yes
Non Destructive Exam Ind
No
Preparer Name
D***** T**********
Preparer Title
Senior Technical Advisor
Preparer Email
D************@s************.com
Preparer Telephone
713-627-5573
Local Contact Name
N***** A****
Local Contact Email
N***********@e*******.com
Local Contact Telephone
713-627-5008
Authorizer Name
N***** A****
Authorizer Title
Manager Operational Compliance
Authorizer Telephone
713-627-5008
Authorizer Email
N***********@e*******.com
Narrative
Company employees discovered a leak due to a crack in a girth weld near the 6 o'clock position on texas eastern transmission, lp 24-inch line 11 near onalaska, texas at 9:30 am november 3, 2015. The leak was the result of a 4" crack at the edge of the girth weld. The crack was in the heat affected zone (haz) at the 6 o'clock pipe position. Pipe containing leak was replaced and line is back in service. Metallurgical testing indicated that the crack was due to hydrogen induced cracking (hic). Supplemental 3/17/2020 updated part g5-metallurgical investigation complete
| Report Received Date | 2015-12-02 00:00:00 |
|---|---|
| Iyear | 2015 |
| Report Number | 20150142 |
| Supplemental Number | 33580 |
| Report Type | Supplemental Final |
| Operator Id | 19235 PHMSA Enforcement |
| Name | Texas Eastern Transmission Lp (Spectra Energy Corp) |
| Operator Street Address | 915 North Eldridge Parkway |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77079 |
| Local Datetime | 2015-11-03 09:30:00 |
| Time Zone | Central |
| Daylight Savings Ind | No |
| Location Latitude | 30.86818206 Google Maps OpenStreetMap |
| Location Longitude | -95.09961628 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1132445 NRC Report How to search |
| Nrc Rpt Datetime | 2015-11-03 10:15:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 1 |
| Intentional Release | 12491 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Status When Identified | Normal Operation, Includes Pauses During Maintenance |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2015-11-03 20:14:00 |
| Restart Datetime | 2015-11-05 17:30:00 |
| Communication State Fed Ind | No |
| Ignite Ind | No |
| Upstream Action Taken | Valve Closure |
| Upstream Valve Close Datetime | 2015-11-03 20:14:00 |
| Downstream Action Taken | Valve Closure |
| Downstream Vlv Close Datetime | 2015-11-03 20:14:00 |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2015-11-03 09:30:00 |
| On Site Datetime | 2015-11-03 09:30:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 77360 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Polk |
| Designated Location | Milepost |
| Designated Name | 144.0 |
| Pipe Fac Name | Line 11 |
| Segment Name | Hunt-Lufk |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 30 |
| Other Underground Facilities | No |
| Crossing | No |
| Pipe Facility Type | Interstate |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| Item Involved | Weld/fusion, Including Heat-Affected Zone |
| Pipe Diameter | 24 |
| Pipe Wall Thickness | 0.312 |
| Pipe Smys | 52000 |
| Pipe Specification | Api-5lx |
| Pipe Seam Type | Flash Welded |
| Pipe Manufacturer | Ao Smith |
| Pipe Coating Type | Coal Tar |
| Coating Applied Ind | Unknown |
| Weld Subtype | Pipe Girth Weld |
| Different Girth Weld Ind | No |
| Installation Year | 1954 |
| Manufactured Year | 1954 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Crack |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 517 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 3 |
| Est Cost Intentional Release | 31229 |
| Est Cost Prop Damage | 122000 |
| Est Cost Emergency | 0 |
| Est Cost Other | 0 |
| Gas Cost In Mcf | 2.5001 |
| Prpty | 153232 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Wildlife Impact Ind | No |
| Accident Psig | 691 |
| Gas Flow In Pipe In Mcf | 80000 |
| Mop Psig | 973 |
| Mop Cfr Section | 192.619(C) View CFR 49 §192 |
| Maop Established Date | 2015-05-01 00:00:00 |
| Maop Reversal Flow Ind | Yes |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Pressure Restriction Ind | No |
| Gas Required Odorized Ind | No |
| Upstream Valve Type Ind | Manual |
| Downstream Valve Type Ind | Manual |
| Length Segment Isolated | 85843 |
| Internal Inspection Ind | Yes |
| Operation Complications Ind | No |
| 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 | Local Operating Personnel, Including Contractors |
| 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 | The release of gas was too small to be detected by scada. |
| 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 |
| Metallurgical Ind | Yes |
| Other Factor | Yes |
| Other Factor Details | Hydrogen Induced Cracking |
| Additional Crack Ind | Yes |
| Post Constr Pressure Test Val | 1308 |
| Collected Data Ind | Yes |
| Axial Magnetic Flx Lkg Ind | Yes |
| Geometry Deformation Ind | Yes |
| Axial Recent Year | 2012 |
| Axial Rcnt Propul Method | Free Swimming |
| Axial Rcnt Attuned Detect | Metal Loss |
| Axial Rcnt Atnd Dtct Metal | High Resolution |
| Axial Previous Year | 2005 |
| Axial Prev Propul Method | Free Swimming |
| Axial Prev Attuned Detect | Metal Loss |
| Axial Prev Atnd Dtct Metal | High Resolution |
| Geometry Recent Year | 2012 |
| Geometry Rcnt Propul Method | Free Swimming |
| Geometry Rcnt Resolution | High Resolution |
| Geometrt Rcnt Measur Cups | No Cups |
| Has Hydrtst Conduc Before Ind | No |
| Direct Asmnt Conducted | Yes, But The Point Of The Accident Was Not Identified As A Dig Site |
| Direct Asmnt Pnt Not Idntf Yr | 2010 |
| Asmnt Ecda Rcnt Year | 2010 |
| Asmnt Icda Rcnt Year | 2010 |
| Asmnt Ecda Rcnt Ind | Yes |
| Asmnt Icda Rcnt Ind | Yes |
| Non Destructive Exam Ind | No |
| Preparer Name | D***** T********** |
| Preparer Title | Senior Technical Advisor |
| Preparer Email | D************@s************.com |
| Preparer Telephone | 713-627-5573 |
| Local Contact Name | N***** A**** |
| Local Contact Email | N***********@e*******.com |
| Local Contact Telephone | 713-627-5008 |
| Authorizer Name | N***** A**** |
| Authorizer Title | Manager Operational Compliance |
| Authorizer Telephone | 713-627-5008 |
| Authorizer Email | N***********@e*******.com |
| Narrative | Company employees discovered a leak due to a crack in a girth weld near the 6 o'clock position on texas eastern transmission, lp 24-inch line 11 near onalaska, texas at 9:30 am november 3, 2015. The leak was the result of a 4" crack at the edge of the girth weld. The crack was in the heat affected zone (haz) at the 6 o'clock pipe position. Pipe containing leak was replaced and line is back in service. Metallurgical testing indicated that the crack was due to hydrogen induced cracking (hic). Supplemental 3/17/2020 updated part g5-metallurgical investigation complete |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA