Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2015-11-29 — TX
Operator
Enable Gas Transmission, Llc
Cause
Equipment Failure
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$0
Incident datetime
2015-11-29 10:58
Report number
Location
TX
Narrative
The generator did not come on and the batteries went dead, causing the esd valves to activate. Valves were incased in ice and would not close. Once the ice was removed from the valves the system worked as designed. Update 2/25/2016: extreme freezing and icy conditions prevented the generator from starting. Road conditions slowed response. The batteries lasted for the duration they were intended for. Follow up to evaluate the system resulted in no changes to the system or its components. The generator performed and started as it was designed to do. Batteries checked out and performed as they were intended and designed to do.
Detailed record list
Report Received Date
2015-12-14 00:00:00
Iyear
2015
Report Number
20150147
Supplemental Number
17022
Report Type
Supplemental Final
Operator Id
Name
Enable Gas Transmission, Llc
Operator Street Address
1300 Main Street
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2015-11-29 10:58:00
Location Latitude
35.232902
Location Longitude
-98.283264
Nrc Rpt Num
1134486
Nrc Rpt Datetime
2015-11-29 11:54:00
Commodity Released Type
Natural Gas
Unintentional Release
32036
Intentional Release
0
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
No
Shutdown Explain
Station Was Not Operating
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2015-11-29 10:58:00
On Site Datetime
2015-11-29 11:53:00
On Off Shore
Onshore
Onshore State Abbreviation
Ok
Onshore Postal Code
73053
Onshore City Name
Not Within A Municipality
Onshore County Name
Caddo
Designated Location
Survey Station No.
Designated Name
S33-11n-12w
Pipe Fac Name
Hinton Compressor Station
Segment Name
Hinton Compressor Station
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
Other
Item Involved Details
Esd System
Installation Year
2006
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
Esd Activated, Valves Frozen And Did Not Close
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
386
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
64072
Est Cost Intentional Release
0
Est Cost Prop Damage
0
Est Cost Emergency
0
Est Cost Other
0
Prpty
64072
Accident Psig
925
Mop Psig
1000
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
No
Scada Conf Ind
Yes
Accident Identifier
Notification From Public
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
Due to ice storm in oklahoma, hinton station communications went out at 10:30 on 11/2/15. The station performed an esd due to power loss and ice prevented the valves from closing. The compression had been offline since 07:00 11/27/15.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Malfunction Of Control/relief Equipment
Eq Failure Type
Malfunction Of Control/relief Equipment
Power Failure Ind
Yes
Other Control Relief Ind
Yes
Other Control Relief Details
Generator Did Not Come On And The Batteries Went Dead, Causing The Esd Valves To Activate. Heavy Icing The Mainline Valves, They Would Not Close.
Additional Electricity Ind
Yes
Eq Additional Other Ind
Yes
Eq Additional Other Details
Ice Storm And Freezing Of Valves
Preparer Name
J**** C****
Preparer Title
Dot Compliance Manager
Preparer Email
J**********@e**************.com
Preparer Telephone
3184293664
Authorizer Name
J***** C*****
Authorizer Title
Sr. Manager Of Dot Compliance Programs
Authorizer Telephone
3184293606
Authorizer Email
J************@e**************.com
Narrative
The generator did not come on and the batteries went dead, causing the esd valves to activate. Valves were incased in ice and would not close. Once the ice was removed from the valves the system worked as designed. Update 2/25/2016: extreme freezing and icy conditions prevented the generator from starting. Road conditions slowed response. The batteries lasted for the duration they were intended for. Follow up to evaluate the system resulted in no changes to the system or its components. The generator performed and started as it was designed to do. Batteries checked out and performed as they were intended and designed to do.
| Report Received Date | 2015-12-14 00:00:00 |
|---|---|
| Iyear | 2015 |
| Report Number | 20150147 |
| Supplemental Number | 17022 |
| Report Type | Supplemental Final |
| Operator Id | 602 PHMSA Enforcement |
| Name | Enable Gas Transmission, Llc |
| Operator Street Address | 1300 Main Street |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2015-11-29 10:58:00 |
| Location Latitude | 35.232902 Google Maps OpenStreetMap |
| Location Longitude | -98.283264 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1134486 NRC Report How to search |
| Nrc Rpt Datetime | 2015-11-29 11:54:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 32036 |
| Intentional Release | 0 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Station Was Not Operating |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2015-11-29 10:58:00 |
| On Site Datetime | 2015-11-29 11:53:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Ok |
| Onshore Postal Code | 73053 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Caddo |
| Designated Location | Survey Station No. |
| Designated Name | S33-11n-12w |
| Pipe Fac Name | Hinton Compressor Station |
| Segment Name | Hinton Compressor Station |
| 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 | Other |
| Item Involved Details | Esd System |
| Installation Year | 2006 |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | Esd Activated, Valves Frozen And Did Not Close |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 386 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 64072 |
| Est Cost Intentional Release | 0 |
| Est Cost Prop Damage | 0 |
| Est Cost Emergency | 0 |
| Est Cost Other | 0 |
| Prpty | 64072 |
| Accident Psig | 925 |
| Mop Psig | 1000 |
| 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 | No |
| Scada Conf Ind | Yes |
| Accident Identifier | Notification From Public |
| 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 | Due to ice storm in oklahoma, hinton station communications went out at 10:30 on 11/2/15. The station performed an esd due to power loss and ice prevented the valves from closing. The compression had been offline since 07:00 11/27/15. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Malfunction Of Control/relief Equipment |
| Eq Failure Type | Malfunction Of Control/relief Equipment |
| Power Failure Ind | Yes |
| Other Control Relief Ind | Yes |
| Other Control Relief Details | Generator Did Not Come On And The Batteries Went Dead, Causing The Esd Valves To Activate. Heavy Icing The Mainline Valves, They Would Not Close. |
| Additional Electricity Ind | Yes |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Ice Storm And Freezing Of Valves |
| Preparer Name | J**** C**** |
| Preparer Title | Dot Compliance Manager |
| Preparer Email | J**********@e**************.com |
| Preparer Telephone | 3184293664 |
| Authorizer Name | J***** C***** |
| Authorizer Title | Sr. Manager Of Dot Compliance Programs |
| Authorizer Telephone | 3184293606 |
| Authorizer Email | J************@e**************.com |
| Narrative | The generator did not come on and the batteries went dead, causing the esd valves to activate. Valves were incased in ice and would not close. Once the ice was removed from the valves the system worked as designed. Update 2/25/2016: extreme freezing and icy conditions prevented the generator from starting. Road conditions slowed response. The batteries lasted for the duration they were intended for. Follow up to evaluate the system resulted in no changes to the system or its components. The generator performed and started as it was designed to do. Batteries checked out and performed as they were intended and designed to do. |
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