Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2011-06-26 — 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)
$250,000
Incident datetime
2011-06-26 15:50
Report number
Location
TX
Narrative
A gulf of mexico offshore producer observed bubbles in vermillion area block 76 and called it in to tgp gas control. The field personnel responsible for this area of the pipeline operations responded and determined that the leak was on tgp's 509a-1601 pipeline, a lateral tied into tgp's bluewater west leg. Isolation valves were closed in order to investigate. Divers determined the source of the leak was a broken 1/2-inch drain line on the side of a 6-inch tie-in vlave. Physical evidence indicated that the line was broken by a hung shrimp net. Repairs were made and the facility was placed back into service.
Detailed record list
Report Received Date
2011-07-22 00:00:00
Iyear
2011
Report Number
20110254
Supplemental Number
15302
Report Type
Original 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
2011-06-26 14:40:00
Location Latitude
29.268309
Location Longitude
-92.356904
Nrc Rpt Num
980838
Nrc Rpt Datetime
2011-06-26 16:10:00
Commodity Released Type
Natural Gas
Unintentional Release
11500
Intentional Release
85750
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2011-06-27 09:00:00
Restart Datetime
2011-06-30 17:00:00
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2011-06-26 15:50:00
On Site Datetime
2011-06-28 15:45:00
On Off Shore
Offshore
Off Water Depth
27
Off Accident Origin
On The Outer Continental Shelf (Ocs)
Off Ocs Area
Vermillion
Off Ocs Block
76
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
Drain Lines
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Other
Leak Type Other
1/2" Pipe Broken By Shrimp Net
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
37
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
46000
Est Cost Intentional Release
343000
Est Cost Prop Damage
250000
Est Cost Emergency
4000
Est Cost Other
0
Est Cost Other Details
None
Prpty
643000
Accident Psig
800
Mop Psig
1253
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
384384
Internal Inspection Ind
No
Other Inspection Ind
Yes
Internal Inspection Details
Pipe That Broke Was Auxiliary Drain Pipe, Only 1/2 Inch In Diameter.
Operation Complications Ind
Yes
Other Complications Ind
Yes
Inspect Comp Details
1/2 Inch Auxiliary Drain Piping.
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
It Was Observed And Called In By An Offshore Producer In The Area.
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 range.
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
2053257554
Preparer Fax
2053253729
Authorizer Name
K****** C P*****
Authorizer Title
Manager - Dot Compliance Field Support
Authorizer Telephone
2053257554
Authorizer Email
K*********@e*****.com
Narrative
A gulf of mexico offshore producer observed bubbles in vermillion area block 76 and called it in to tgp gas control. The field personnel responsible for this area of the pipeline operations responded and determined that the leak was on tgp's 509a-1601 pipeline, a lateral tied into tgp's bluewater west leg. Isolation valves were closed in order to investigate. Divers determined the source of the leak was a broken 1/2-inch drain line on the side of a 6-inch tie-in vlave. Physical evidence indicated that the line was broken by a hung shrimp net. Repairs were made and the facility was placed back into service.
| Report Received Date | 2011-07-22 00:00:00 |
|---|---|
| Iyear | 2011 |
| Report Number | 20110254 |
| Supplemental Number | 15302 |
| Report Type | Original 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 | 2011-06-26 14:40:00 |
| Location Latitude | 29.268309 Google Maps OpenStreetMap |
| Location Longitude | -92.356904 Google Maps OpenStreetMap |
| Nrc Rpt Num | 980838 NRC Report How to search |
| Nrc Rpt Datetime | 2011-06-26 16:10:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 11500 |
| Intentional Release | 85750 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2011-06-27 09:00:00 |
| Restart Datetime | 2011-06-30 17:00:00 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2011-06-26 15:50:00 |
| On Site Datetime | 2011-06-28 15:45:00 |
| On Off Shore | Offshore |
| Off Water Depth | 27 |
| Off Accident Origin | On The Outer Continental Shelf (Ocs) |
| Off Ocs Area | Vermillion |
| Off Ocs Block | 76 |
| 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 | Drain Lines |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Other |
| Leak Type Other | 1/2" Pipe Broken By Shrimp Net |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 37 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 46000 |
| Est Cost Intentional Release | 343000 |
| Est Cost Prop Damage | 250000 |
| Est Cost Emergency | 4000 |
| Est Cost Other | 0 |
| Est Cost Other Details | None |
| Prpty | 643000 |
| Accident Psig | 800 |
| Mop Psig | 1253 |
| 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 | 384384 |
| Internal Inspection Ind | No |
| Other Inspection Ind | Yes |
| Internal Inspection Details | Pipe That Broke Was Auxiliary Drain Pipe, Only 1/2 Inch In Diameter. |
| Operation Complications Ind | Yes |
| Other Complications Ind | Yes |
| Inspect Comp Details | 1/2 Inch Auxiliary Drain Piping. |
| 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 | It Was Observed And Called In By An Offshore Producer In The Area. |
| 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 range. |
| 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 | 2053257554 |
| Preparer Fax | 2053253729 |
| Authorizer Name | K****** C P***** |
| Authorizer Title | Manager - Dot Compliance Field Support |
| Authorizer Telephone | 2053257554 |
| Authorizer Email | K*********@e*****.com |
| Narrative | A gulf of mexico offshore producer observed bubbles in vermillion area block 76 and called it in to tgp gas control. The field personnel responsible for this area of the pipeline operations responded and determined that the leak was on tgp's 509a-1601 pipeline, a lateral tied into tgp's bluewater west leg. Isolation valves were closed in order to investigate. Divers determined the source of the leak was a broken 1/2-inch drain line on the side of a 6-inch tie-in vlave. Physical evidence indicated that the line was broken by a hung shrimp net. Repairs were made and the facility was placed back into service. |
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