Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2014-11-19 — TX
Operator
Columbia Gulf Transmission, Llc
Cause
Equipment Failure
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$500
Incident datetime
2014-11-19 01:05
Report number
Location
TX
Narrative
On november 19th, 2014, a columbia gulf transmission, llc (columbia) compressor station (cs) was subject to an unintended loss of natural gas (material) through an 8-in blow-off valve. This event occurred at the columbia clementsville cs located in casey county, near the town of liberty, ky. The event that led to an unintended release of material exceeding 3,000 mcf was reported to the national response center accordingly. Once the root cause analysis investigation had been performed, it was determined that the blow-off valve failed to close when commanded due to an undetected open circuit in the solenoid coil. Elevated resistivity was measured on the solenoid coil wiring and moisture was detected in its enclosure. Moisture was removed, retested where it displayed normal resistivity levels. Cover plate was installed with proper sealant to avoid moisture from accumulating inside the solenoid coil wiring enclosure. Thereafter, a full system check was performed before returning the cs back into service.
Detailed record list
Report Received Date
2014-12-17 00:00:00
Iyear
2014
Report Number
20140139
Supplemental Number
17375
Report Type
Supplemental Final
Operator Id
2620
Name
Columbia Gulf Transmission, Llc
Operator Street Address
700 Louisiana St. Suite 700
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2014-11-19 01:05:00
Location Latitude
37.31
Location Longitude
-85.061136
Nrc Rpt Num
1101420
Nrc Rpt Datetime
2014-11-19 04:11:00
Commodity Released Type
Natural Gas
Unintentional Release
19637
Intentional Release
0
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
No
Shutdown Explain
Because The Station Emergency Shutdown System Was Activated
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2014-11-19 01:05:00
On Site Datetime
2014-11-19 01:46:00
On Off Shore
Onshore
Onshore State Abbreviation
Ky
Onshore Postal Code
42539
Onshore City Name
Liberty
Onshore County Name
Casey
Designated Location
Milepost
Designated Name
Shafer Act
Pipe Fac Name
Clementsville Compressor Station
Segment Name
2sh-1dbd
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
2013
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
Blow-Off Valve Release
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
169
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
71871
Est Cost Intentional Release
0
Est Cost Prop Damage
500
Est Cost Emergency
0
Est Cost Other
0
Prpty
72371
Accident Psig
660
Mop Psig
935
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
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
The reason behind the failed blow-off valve and the controller was able to identify the event through scada
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Compressor Or Compressor-Related Equipment
Eq Failure Type
Compressor Or Compressor-Related Equipment
Other Compressor Ind
Other
Other Compressor Details
Solenoid Valve Had A Spring That Was Not Seated
Eq Additional Other Ind
Yes
Eq Additional Other Details
Improperly Seated Spring
Preparer Name
C*** B*****
Preparer Title
Specialist
Preparer Email
C**********@t**********.com
Preparer Telephone
(304) 357-2814
Authorizer Name
L** R*****
Authorizer Title
Manager
Authorizer Telephone
(832) 320-5315
Authorizer Email
L*********@t**********.com
Narrative
On november 19th, 2014, a columbia gulf transmission, llc (columbia) compressor station (cs) was subject to an unintended loss of natural gas (material) through an 8-in blow-off valve. This event occurred at the columbia clementsville cs located in casey county, near the town of liberty, ky. The event that led to an unintended release of material exceeding 3,000 mcf was reported to the national response center accordingly. Once the root cause analysis investigation had been performed, it was determined that the blow-off valve failed to close when commanded due to an undetected open circuit in the solenoid coil. Elevated resistivity was measured on the solenoid coil wiring and moisture was detected in its enclosure. Moisture was removed, retested where it displayed normal resistivity levels. Cover plate was installed with proper sealant to avoid moisture from accumulating inside the solenoid coil wiring enclosure. Thereafter, a full system check was performed before returning the cs back into service.
| Report Received Date | 2014-12-17 00:00:00 |
|---|---|
| Iyear | 2014 |
| Report Number | 20140139 |
| Supplemental Number | 17375 |
| Report Type | Supplemental Final |
| Operator Id | 2620 PHMSA Enforcement |
| Name | Columbia Gulf Transmission, Llc |
| Operator Street Address | 700 Louisiana St. Suite 700 |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2014-11-19 01:05:00 |
| Location Latitude | 37.31 Google Maps OpenStreetMap |
| Location Longitude | -85.061136 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1101420 NRC Report How to search |
| Nrc Rpt Datetime | 2014-11-19 04:11:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 19637 |
| Intentional Release | 0 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Because The Station Emergency Shutdown System Was Activated |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2014-11-19 01:05:00 |
| On Site Datetime | 2014-11-19 01:46:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Ky |
| Onshore Postal Code | 42539 |
| Onshore City Name | Liberty |
| Onshore County Name | Casey |
| Designated Location | Milepost |
| Designated Name | Shafer Act |
| Pipe Fac Name | Clementsville Compressor Station |
| Segment Name | 2sh-1dbd |
| 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 | 2013 |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | Blow-Off Valve Release |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 169 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 71871 |
| Est Cost Intentional Release | 0 |
| Est Cost Prop Damage | 500 |
| Est Cost Emergency | 0 |
| Est Cost Other | 0 |
| Prpty | 72371 |
| Accident Psig | 660 |
| Mop Psig | 935 |
| 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 | 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 | The reason behind the failed blow-off valve and the controller was able to identify the event through scada |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Compressor Or Compressor-Related Equipment |
| Eq Failure Type | Compressor Or Compressor-Related Equipment |
| Other Compressor Ind | Other |
| Other Compressor Details | Solenoid Valve Had A Spring That Was Not Seated |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Improperly Seated Spring |
| Preparer Name | C*** B***** |
| Preparer Title | Specialist |
| Preparer Email | C**********@t**********.com |
| Preparer Telephone | (304) 357-2814 |
| Authorizer Name | L** R***** |
| Authorizer Title | Manager |
| Authorizer Telephone | (832) 320-5315 |
| Authorizer Email | L*********@t**********.com |
| Narrative | On november 19th, 2014, a columbia gulf transmission, llc (columbia) compressor station (cs) was subject to an unintended loss of natural gas (material) through an 8-in blow-off valve. This event occurred at the columbia clementsville cs located in casey county, near the town of liberty, ky. The event that led to an unintended release of material exceeding 3,000 mcf was reported to the national response center accordingly. Once the root cause analysis investigation had been performed, it was determined that the blow-off valve failed to close when commanded due to an undetected open circuit in the solenoid coil. Elevated resistivity was measured on the solenoid coil wiring and moisture was detected in its enclosure. Moisture was removed, retested where it displayed normal resistivity levels. Cover plate was installed with proper sealant to avoid moisture from accumulating inside the solenoid coil wiring enclosure. Thereafter, a full system check was performed before returning the cs back into service. |
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