Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2015-09-21 — TX
Operator
Texas Eastern Transmission Lp (Spectra Energy Corp)
Cause
Corrosion Failure
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$325,000
Incident datetime
2015-09-21 18:15
Report number
Location
TX
Narrative
Indications of bubbles on the water surface in east cameron 246 were reported by a coast guard helicopter on september 21, 2015. Upon investigation, it was determined the leak was caused by a pinhole leak resulting from internal corrosion on texas eastern transmission, l.P. 20-inch line 41-a-2 natural gas pipeline. Repair by installation of a clamp was completed september 25, 2015.
Detailed record list
Report Received Date
2015-10-13 00:00:00
Iyear
2015
Report Number
20150122
Supplemental Number
16883
Report Type
Original 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
2015-09-21 18:15:00
Location Latitude
28.5475
Location Longitude
-92.9047222
Nrc Rpt Num
1129074
Nrc Rpt Datetime
2015-09-21 19:15:00
Commodity Released Type
Natural Gas
Unintentional Release
65
Intentional Release
18802
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2015-09-22 18:00:00
Restart Datetime
2015-09-25 07:30:00
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2015-09-21 18:15:00
On Site Datetime
2015-09-22 12:00:00
On Off Shore
Offshore
Off Water Depth
150
Off Accident Origin
On The Outer Continental Shelf (Ocs)
Off Ocs Area
East Cameron
Off Ocs Block
246
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
Pipe
Pipe Type
Pipe Body
Pipe Diameter
20
Pipe Wall Thickness
0.406
Pipe Smys
52000
Pipe Specification
Api-5l X-52
Pipe Seam Type
Seamless
Pipe Manufacturer
Us Steel
Pipe Coating Type
Other
Pipe Coating Details
Concrete And Somastic
Installation Year
1971
Manufactured Year
1971
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Pinhole
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
524
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
162
Est Cost Intentional Release
47005
Est Cost Prop Damage
325000
Est Cost Emergency
0
Est Cost Other
0
Prpty
372167
Accident Psig
900
Mop Psig
1440
Mop Cfr Section
192.619(A)(1)
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Manual
Length Segment Isolated
100425
Internal Inspection 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
Coast Guard Helcopter Discovered The Leak
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 leak was too small to be identified by control room personnel. A review of operating records found abnormal operating conditions did not contribute to the incident.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Corrosion Failure
Cause Details
Internal Corrosion
Internal External
Internal Corrosion
Int Visual Exam Results
Localized Pitting
Int Microbiological Ind
Yes
Int Field Exam Basis Ind
Yes
Int Low Point Pipe Loc Ind
Yes
Corrosion Inhibitors
Yes
Corrosion Lining
No
Cleaning Dewatering
Yes
Corrosion Coupons
Yes
Collected Data Ind
No
Has Hydrtst Conduc Before Ind
No
Direct Asmnt Conducted
No
Non Destructive Exam Ind
No
Preparer Name
D***** T**********
Preparer Title
Senior Technical Advisor
Preparer Email
D************@s************.com
Preparer Telephone
713-627-5573
Preparer Fax
713-386-4468
Authorizer Name
N***** A****
Authorizer Title
Manager Operational Compliance
Authorizer Telephone
713-627-5008
Authorizer Email
N******@s************.com
Narrative
Indications of bubbles on the water surface in east cameron 246 were reported by a coast guard helicopter on september 21, 2015. Upon investigation, it was determined the leak was caused by a pinhole leak resulting from internal corrosion on texas eastern transmission, l.P. 20-inch line 41-a-2 natural gas pipeline. Repair by installation of a clamp was completed september 25, 2015.
| Report Received Date | 2015-10-13 00:00:00 |
|---|---|
| Iyear | 2015 |
| Report Number | 20150122 |
| Supplemental Number | 16883 |
| Report Type | Original 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 | 2015-09-21 18:15:00 |
| Location Latitude | 28.5475 Google Maps OpenStreetMap |
| Location Longitude | -92.9047222 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1129074 NRC Report How to search |
| Nrc Rpt Datetime | 2015-09-21 19:15:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 65 |
| Intentional Release | 18802 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2015-09-22 18:00:00 |
| Restart Datetime | 2015-09-25 07:30:00 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2015-09-21 18:15:00 |
| On Site Datetime | 2015-09-22 12:00:00 |
| On Off Shore | Offshore |
| Off Water Depth | 150 |
| Off Accident Origin | On The Outer Continental Shelf (Ocs) |
| Off Ocs Area | East Cameron |
| Off Ocs Block | 246 |
| 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 | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 20 |
| Pipe Wall Thickness | 0.406 |
| Pipe Smys | 52000 |
| Pipe Specification | Api-5l X-52 |
| Pipe Seam Type | Seamless |
| Pipe Manufacturer | Us Steel |
| Pipe Coating Type | Other |
| Pipe Coating Details | Concrete And Somastic |
| Installation Year | 1971 |
| Manufactured Year | 1971 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Pinhole |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 524 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 162 |
| Est Cost Intentional Release | 47005 |
| Est Cost Prop Damage | 325000 |
| Est Cost Emergency | 0 |
| Est Cost Other | 0 |
| Prpty | 372167 |
| Accident Psig | 900 |
| Mop Psig | 1440 |
| Mop Cfr Section | 192.619(A)(1) 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 | 100425 |
| Internal Inspection 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 | Coast Guard Helcopter Discovered The Leak |
| 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 leak was too small to be identified by control room personnel. A review of operating records found abnormal operating conditions did not contribute to the incident. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Corrosion Failure |
| Cause Details | Internal Corrosion |
| Internal External | Internal Corrosion |
| Int Visual Exam Results | Localized Pitting |
| Int Microbiological Ind | Yes |
| Int Field Exam Basis Ind | Yes |
| Int Low Point Pipe Loc Ind | Yes |
| Corrosion Inhibitors | Yes |
| Corrosion Lining | No |
| Cleaning Dewatering | Yes |
| Corrosion Coupons | Yes |
| Collected Data Ind | No |
| Has Hydrtst Conduc Before Ind | No |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | No |
| Preparer Name | D***** T********** |
| Preparer Title | Senior Technical Advisor |
| Preparer Email | D************@s************.com |
| Preparer Telephone | 713-627-5573 |
| Preparer Fax | 713-386-4468 |
| Authorizer Name | N***** A**** |
| Authorizer Title | Manager Operational Compliance |
| Authorizer Telephone | 713-627-5008 |
| Authorizer Email | N******@s************.com |
| Narrative | Indications of bubbles on the water surface in east cameron 246 were reported by a coast guard helicopter on september 21, 2015. Upon investigation, it was determined the leak was caused by a pinhole leak resulting from internal corrosion on texas eastern transmission, l.P. 20-inch line 41-a-2 natural gas pipeline. Repair by installation of a clamp was completed september 25, 2015. |
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