Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2011-01-09 — TX
Operator
Texas Gas Transmission Llc
Cause
Natural Force Damage
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$0
Incident datetime
2011-01-09 18:05
Report number
Location
TX
Narrative
On 01-09-2011 at approximately 6:05 pm, an esd blowdown valve opened unintentionally due to icing of the control pilot and valve. The valve vented for approximately 40 minutes at 760 psig resulting in an estimated gas loss of 6,696 mcf. The on-duty employee manully closed the valve. The repair was made by de-icing the valve and installing a new pilot control. The pipeline system was returned to normal operations. Added data to part e5.F as requested by PHMSA.
Detailed record list
Report Received Date
2011-02-01 00:00:00
Iyear
2011
Report Number
20110011
Supplemental Number
15836
Report Type
Supplemental Final
Operator Id
19270
Name
Texas Gas Transmission Llc
Operator Street Address
9 Greenway Plaza Suite 2800
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77046
Local Datetime
2011-01-09 18:05:00
Location Latitude
32.67667
Location Longitude
-92.02
Nrc Rpt Num
964142
Nrc Rpt Datetime
2011-01-09 19:30:00
Commodity Released Type
Natural Gas
Unintentional Release
0
Intentional Release
6696
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
No
Shutdown Explain
Station Was Already In By-Pass Mode. No Horsepower Was On-Line.
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2011-01-09 18:05:00
On Site Datetime
2011-01-09 18:25:00
On Off Shore
Onshore
Onshore State Abbreviation
La
Onshore Postal Code
71280
Onshore City Name
Sterlington
Onshore County Name
Ouchita
Designated Location
Milepost
Designated Name
00.00
Pipe Fac Name
Guthrie Compressor Station
Segment Name
Eis-1
Federal
No
Location Type
Operator-Controlled Property
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance
Crossing
No
Pipe Facility Type
Interstate
System Part Involved
Onshore Compressor Station Equipment And Piping
Item Involved
Valve
Valve Type
Auxiliary Or Other Valve
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
False Signal Sent To Esd Device Due To Icing.
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
30
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
29529
Est Cost Intentional Release
0
Est Cost Prop Damage
0
Est Cost Emergency
542
Est Cost Other
0
Prpty
30071
Accident Psig
760
Mop Psig
810
Mop Cfr Section
Not On Omb-Approved Form When Submitted
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Pipeline Function
Transmission System
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
Yes
Scada Conf Ind
No
Accident Identifier
Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Or Pack Calculations)
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
Local weather conditions was cause of the incident.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Natural Force Damage
Cause Details
Temperature
Natural Force Type
Temperature
Temperature Subtype
Frozen Components
Nf Extreme Weather Ind
Yes
Nf Other Ind
Yes
Nf Extreme Weather Details
Winter Storm - Icing
Preparer Name
S****** M********
Preparer Title
Oq And Pa Coordinator
Preparer Email
S****************@b*****.com
Preparer Telephone
270-688-6357
Preparer Fax
270-688-5871
Authorizer Name
J****** B* M******
Authorizer Title
Manager Codes And Standards
Authorizer Telephone
270-688-6361
Authorizer Email
J***********@b*****.com
Narrative
On 01-09-2011 at approximately 6:05 pm, an esd blowdown valve opened unintentionally due to icing of the control pilot and valve. The valve vented for approximately 40 minutes at 760 psig resulting in an estimated gas loss of 6,696 mcf. The on-duty employee manully closed the valve. The repair was made by de-icing the valve and installing a new pilot control. The pipeline system was returned to normal operations. Added data to part e5.F as requested by PHMSA.
| Report Received Date | 2011-02-01 00:00:00 |
|---|---|
| Iyear | 2011 |
| Report Number | 20110011 |
| Supplemental Number | 15836 |
| Report Type | Supplemental Final |
| Operator Id | 19270 PHMSA Enforcement |
| Name | Texas Gas Transmission Llc |
| Operator Street Address | 9 Greenway Plaza Suite 2800 |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77046 |
| Local Datetime | 2011-01-09 18:05:00 |
| Location Latitude | 32.67667 Google Maps OpenStreetMap |
| Location Longitude | -92.02 Google Maps OpenStreetMap |
| Nrc Rpt Num | 964142 NRC Report How to search |
| Nrc Rpt Datetime | 2011-01-09 19:30:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 0 |
| Intentional Release | 6696 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Station Was Already In By-Pass Mode. No Horsepower Was On-Line. |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2011-01-09 18:05:00 |
| On Site Datetime | 2011-01-09 18:25:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | La |
| Onshore Postal Code | 71280 |
| Onshore City Name | Sterlington |
| Onshore County Name | Ouchita |
| Designated Location | Milepost |
| Designated Name | 00.00 |
| Pipe Fac Name | Guthrie Compressor Station |
| Segment Name | Eis-1 |
| Federal | No |
| Location Type | Operator-Controlled Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance |
| Crossing | No |
| Pipe Facility Type | Interstate |
| System Part Involved | Onshore Compressor Station Equipment And Piping |
| Item Involved | Valve |
| Valve Type | Auxiliary Or Other Valve |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | False Signal Sent To Esd Device Due To Icing. |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 30 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 29529 |
| Est Cost Intentional Release | 0 |
| Est Cost Prop Damage | 0 |
| Est Cost Emergency | 542 |
| Est Cost Other | 0 |
| Prpty | 30071 |
| Accident Psig | 760 |
| Mop Psig | 810 |
| 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 |
| Pipeline Function | Transmission System |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | Yes |
| Scada Conf Ind | No |
| Accident Identifier | Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Or Pack Calculations) |
| 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 | Local weather conditions was cause of the incident. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Natural Force Damage |
| Cause Details | Temperature |
| Natural Force Type | Temperature |
| Temperature Subtype | Frozen Components |
| Nf Extreme Weather Ind | Yes |
| Nf Other Ind | Yes |
| Nf Extreme Weather Details | Winter Storm - Icing |
| Preparer Name | S****** M******** |
| Preparer Title | Oq And Pa Coordinator |
| Preparer Email | S****************@b*****.com |
| Preparer Telephone | 270-688-6357 |
| Preparer Fax | 270-688-5871 |
| Authorizer Name | J****** B* M****** |
| Authorizer Title | Manager Codes And Standards |
| Authorizer Telephone | 270-688-6361 |
| Authorizer Email | J***********@b*****.com |
| Narrative | On 01-09-2011 at approximately 6:05 pm, an esd blowdown valve opened unintentionally due to icing of the control pilot and valve. The valve vented for approximately 40 minutes at 760 psig resulting in an estimated gas loss of 6,696 mcf. The on-duty employee manully closed the valve. The repair was made by de-icing the valve and installing a new pilot control. The pipeline system was returned to normal operations. Added data to part e5.F as requested by PHMSA. |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA