Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2018-01-02 — TX
Operator
Tennessee Gas Pipeline Company
Cause
Natural Force Damage
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$13,650
Incident datetime
2018-01-02 00:01
Report number
Location
TX
Narrative
All times are central standard time; pir = 633 feet; km tgp pir with buffer = 673 feet; 48-hour nrc update made early during normal business hours, nrc # 1201018, 01/03/2018, 14:28 cst; gas release reported to la state police 01/02/2018; report number 18-00012; 01/02/18, station 834 is on line, operating personnel is on site; weather condition is unusual severe cold weather; 15 degrees fahrenheit; 01/02/2018, 00:01 hour, valve unintentionally began to open, releasing natural gas to atmosphere; operating personnel immediately heard the sound of venting natural gas and investigated source of blowing gas; operating personnel then initiated a station shut down; a side valve unintentionally did not close allowing natural gas to continue to feed open valve; a resident heard the same and called 911 (farm houses in the area); sheriff department called tgp gas control; 00:57 hour, another block valve was remotely closed by employees thus terminating the release of natural gas to atmosphere; investigation and repair commenced; moisture created ice in the control box of the valve; said ice caused incorrect operation of the controls thus opening the valve unintentionally; the controls were cleaned and lubricated and the control box was reinstalled; controls of the side valve were freed from ice in the worm gear housing and the actuator was lubricated and returned to service mode; 01/04/2018, 18:20 hours, station 834 returned to on line status;
Detailed record list
Report Received Date
2018-01-11 00:00:00
Iyear
2018
Report Number
20180009
Supplemental Number
17610
Report Type
Supplemental Final
Operator Id
19160
Name
Tennessee Gas Pipeline Company
Operator Street Address
1001 Louisiana St
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2018-01-02 00:01:00
Location Latitude
31.96260235
Location Longitude
-91.82174823
Nrc Rpt Num
1200909
Nrc Rpt Datetime
2018-01-02 01:00:00
Commodity Released Type
Natural Gas
Unintentional Release
16280
Intentional Release
0
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2018-01-02 00:57:00
Restart Datetime
2018-01-04 18:20:00
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2018-01-02 00:01:00
On Site Datetime
2018-01-02 00:01:00
On Off Shore
Onshore
Onshore State Abbreviation
La
Onshore Postal Code
71243
Onshore City Name
Not Within A Municipality
Onshore County Name
Franklin
Designated Location
Milepost
Designated Name
Mp 0 In Yard
Pipe Fac Name
Station 834 - Winnsboro Station
Segment Name
800-1 Line; 834 To 837 Segment
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
Installation Year
2017
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
Ice Formed In Valve Control Causing Valve To Open And Release Natural Gas
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
633
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
46398
Est Cost Intentional Release
0
Est Cost Prop Damage
13650
Est Cost Emergency
2525
Est Cost Other
0
Prpty
62573
Accident Psig
737
Mop Psig
936
Mop Cfr Section
192.619(A)(2)
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
Yes
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
Valve operated due to ice in the controller
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Natural Force Damage
Cause Details
Other Natural Force Damage
Natural Force Type
Other Natural Force Damage
Nf Other Details
16 Degrees F, Severe Cold Weather; Ice Formed In The Controller Of Valve
Nf Extreme Weather Ind
Yes
Nf Other Ind
Yes
Nf Extreme Weather Details
Extreme Cold Front For This Part Of The Country, 16 Degrees F
Preparer Name
W** M***** M*****
Preparer Title
Specialist - Pipeline Technical
Preparer Email
M************@k***********.com
Preparer Telephone
2053253863
Preparer Fax
205 325 3592
Authorizer Name
J**** H********
Authorizer Title
Director Compliance Codes And Standards
Authorizer Telephone
713 369 9443
Authorizer Email
J**************@k***********.com
Narrative
All times are central standard time; pir = 633 feet; km tgp pir with buffer = 673 feet; 48-hour nrc update made early during normal business hours, nrc # 1201018, 01/03/2018, 14:28 cst; gas release reported to la state police 01/02/2018; report number 18-00012; 01/02/18, station 834 is on line, operating personnel is on site; weather condition is unusual severe cold weather; 15 degrees fahrenheit; 01/02/2018, 00:01 hour, valve unintentionally began to open, releasing natural gas to atmosphere; operating personnel immediately heard the sound of venting natural gas and investigated source of blowing gas; operating personnel then initiated a station shut down; a side valve unintentionally did not close allowing natural gas to continue to feed open valve; a resident heard the same and called 911 (farm houses in the area); sheriff department called tgp gas control; 00:57 hour, another block valve was remotely closed by employees thus terminating the release of natural gas to atmosphere; investigation and repair commenced; moisture created ice in the control box of the valve; said ice caused incorrect operation of the controls thus opening the valve unintentionally; the controls were cleaned and lubricated and the control box was reinstalled; controls of the side valve were freed from ice in the worm gear housing and the actuator was lubricated and returned to service mode; 01/04/2018, 18:20 hours, station 834 returned to on line status;
| Report Received Date | 2018-01-11 00:00:00 |
|---|---|
| Iyear | 2018 |
| Report Number | 20180009 |
| Supplemental Number | 17610 |
| Report Type | Supplemental Final |
| Operator Id | 19160 PHMSA Enforcement |
| Name | Tennessee Gas Pipeline Company |
| Operator Street Address | 1001 Louisiana St |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2018-01-02 00:01:00 |
| Location Latitude | 31.96260235 Google Maps OpenStreetMap |
| Location Longitude | -91.82174823 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1200909 NRC Report How to search |
| Nrc Rpt Datetime | 2018-01-02 01:00:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 16280 |
| Intentional Release | 0 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2018-01-02 00:57:00 |
| Restart Datetime | 2018-01-04 18:20:00 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2018-01-02 00:01:00 |
| On Site Datetime | 2018-01-02 00:01:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | La |
| Onshore Postal Code | 71243 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Franklin |
| Designated Location | Milepost |
| Designated Name | Mp 0 In Yard |
| Pipe Fac Name | Station 834 - Winnsboro Station |
| Segment Name | 800-1 Line; 834 To 837 Segment |
| 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 |
| Installation Year | 2017 |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | Ice Formed In Valve Control Causing Valve To Open And Release Natural Gas |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 633 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 46398 |
| Est Cost Intentional Release | 0 |
| Est Cost Prop Damage | 13650 |
| Est Cost Emergency | 2525 |
| Est Cost Other | 0 |
| Prpty | 62573 |
| Accident Psig | 737 |
| Mop Psig | 936 |
| Mop Cfr Section | 192.619(A)(2) 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 | Yes |
| 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 | Valve operated due to ice in the controller |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Natural Force Damage |
| Cause Details | Other Natural Force Damage |
| Natural Force Type | Other Natural Force Damage |
| Nf Other Details | 16 Degrees F, Severe Cold Weather; Ice Formed In The Controller Of Valve |
| Nf Extreme Weather Ind | Yes |
| Nf Other Ind | Yes |
| Nf Extreme Weather Details | Extreme Cold Front For This Part Of The Country, 16 Degrees F |
| Preparer Name | W** M***** M***** |
| Preparer Title | Specialist - Pipeline Technical |
| Preparer Email | M************@k***********.com |
| Preparer Telephone | 2053253863 |
| Preparer Fax | 205 325 3592 |
| Authorizer Name | J**** H******** |
| Authorizer Title | Director Compliance Codes And Standards |
| Authorizer Telephone | 713 369 9443 |
| Authorizer Email | J**************@k***********.com |
| Narrative | All times are central standard time; pir = 633 feet; km tgp pir with buffer = 673 feet; 48-hour nrc update made early during normal business hours, nrc # 1201018, 01/03/2018, 14:28 cst; gas release reported to la state police 01/02/2018; report number 18-00012; 01/02/18, station 834 is on line, operating personnel is on site; weather condition is unusual severe cold weather; 15 degrees fahrenheit; 01/02/2018, 00:01 hour, valve unintentionally began to open, releasing natural gas to atmosphere; operating personnel immediately heard the sound of venting natural gas and investigated source of blowing gas; operating personnel then initiated a station shut down; a side valve unintentionally did not close allowing natural gas to continue to feed open valve; a resident heard the same and called 911 (farm houses in the area); sheriff department called tgp gas control; 00:57 hour, another block valve was remotely closed by employees thus terminating the release of natural gas to atmosphere; investigation and repair commenced; moisture created ice in the control box of the valve; said ice caused incorrect operation of the controls thus opening the valve unintentionally; the controls were cleaned and lubricated and the control box was reinstalled; controls of the side valve were freed from ice in the worm gear housing and the actuator was lubricated and returned to service mode; 01/04/2018, 18:20 hours, station 834 returned to on line status; |
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