GTG incident on 2023-05-25 — TX

Operator
Columbia Gulf Transmission, Llc
Cause
Natural Force Damage
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities 0 injuries
Property damage (nominal)
$113,626
Incident datetime
2023-05-25 00:00 UTC
Report number
Location
TX
Narrative
On april 28, 2023, at approximately 00:39 hrs. Cst, lightning struck the corinth compressor station which is located in alcorn county, mississippi. The lightning strike caused damage to a small control fuse on the plc and therefore caused the activation of the esd system at 00:40 hrs. Cst. Tc energy was notified by the public of a potential fire after the activation of the esd system. It was later confirmed lightning ignited the gas on horsepower block 1 (hpb1) blowdown silencer. It is unclear if the original lightning strike that damaged the fuse also started the fire or if there was a second lightning strike after the esd was initiated. Local ems responded to site. Nrc notification was made within 1-hour of confirmation of incident. The event was reported to nrc (nrc 1 hr. Report #: 1365859 and nrc 48-hr. Update report#: 1365979) at 02:18 hrs. Cst. Operations responded to the scene and identified the fire and gas release. The source of the gas was isolated, and the fire was allowed to burn down to a minimum where the local fire department extinguished the remaining flame. Operations returned the corinth compressor station to service at 15:45 hrs. Cst.
Detailed record list
Report Received Date
2023-05-25 00:00:00
Iyear
2023
Report Number
20230048
Supplemental Number
38168
Report Type
Supplemental Final
Operator Id
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
Time Zone
Central
Daylight Savings Ind
Yes
Location Latitude
Location Longitude
Nrc Rpt Num
Additional Nrc Report Numbers
1365979
Commodity Released Type
Natural Gas
Unintentional Release
23700
Intentional Release
0
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Status When Identified
Normal Operation, Includes Pauses During Maintenance
Shutdown Due Accident Ind
Yes
Communication State Fed Ind
Yes
Party Initiated Communication
Local/state/federal Emergency Responder
Ignite Ind
Yes
How Extinguished
Local/state/federal Emergency Responder
Gas Consumed By Fire In Mcf
707
Explode Ind
No
Num Pub Evacuated
0
On Off Shore
Onshore
Onshore State Abbreviation
Ms
Onshore Postal Code
38334
Onshore City Name
Corinth
Onshore County Name
Alcorn
Designated Location
Not Applicable
Pipe Fac Name
Corinth Compressor Station
Segment Name
034088
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
Esd System, But Excluding Product Drain Lines And Tubing
Installation Year
1994
Manufactured Year
1993
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
Emergency Shutdown (Esd) System Activated At Corinth Compressor Station And The Hp Block1 Blowdown Stack Ignited. An In-Direct Lightning Strike Caused Minor Damage To The Facility. Lightning Strike Damaged Small Control Fuse On Plc, Therefore Causing Failure On Esd System.
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
730
Heat Damage Ind
No
Non Heat Damage Ind
No
Did Occur In Mca Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
43845
Est Cost Intentional Release
0
Est Cost Prop Damage
113626
Est Cost Emergency
0
Est Cost Other
0
Gas Cost In Mcf
1.85
Prpty
157471
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Wildlife Impact Ind
No
Accident Psig
835
Gas Flow In Pipe In Mcf
250000
Mop Psig
935
Mop Cfr Section
192.619(A)(1)
Maop Established Date
1954-07-08 00:00:00
Maop Reversal Flow Ind
No
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Gas Required Odorized 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
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
At this time the cause of the incident was due to an indirect lightning strike.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Natural Force Damage
Cause Details
Lightning
Natural Force Type
Lightning
Lightning Subtype
Secondary Impact Such As Resulting Nearby Fires
Nf Extreme Weather Ind
No
Preparer Name
C*** S*******
Preparer Title
Compliance Specialist
Preparer Email
C************@t*******.com
Authorizer Name
P*** S******
Authorizer Telephone
3043572245
Authorizer Email
P***********@t*******.com
Narrative
On april 28, 2023, at approximately 00:39 hrs. Cst, lightning struck the corinth compressor station which is located in alcorn county, mississippi. The lightning strike caused damage to a small control fuse on the plc and therefore caused the activation of the esd system at 00:40 hrs. Cst. Tc energy was notified by the public of a potential fire after the activation of the esd system. It was later confirmed lightning ignited the gas on horsepower block 1 (hpb1) blowdown silencer. It is unclear if the original lightning strike that damaged the fuse also started the fire or if there was a second lightning strike after the esd was initiated. Local ems responded to site. Nrc notification was made within 1-hour of confirmation of incident. The event was reported to nrc (nrc 1 hr. Report #: 1365859 and nrc 48-hr. Update report#: 1365979) at 02:18 hrs. Cst. Operations responded to the scene and identified the fire and gas release. The source of the gas was isolated, and the fire was allowed to burn down to a minimum where the local fire department extinguished the remaining flame. Operations returned the corinth compressor station to service at 15:45 hrs. Cst.
Report Received Date 2023-05-25 00:00:00
Iyear 2023
Report Number 20230048
Supplemental Number 38168
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
Time Zone Central
Daylight Savings Ind Yes
Location Latitude 34.961909 Google Maps OpenStreetMap
Location Longitude -88.419085 Google Maps OpenStreetMap
Nrc Rpt Num 1365859 NRC Report How to search
Additional Nrc Report Numbers 1365979
Commodity Released Type Natural Gas
Unintentional Release 23700
Intentional Release 0
Accompanying Liquid 0
Fatality Ind No
Fatal 0
Injury Ind No
Injure 0
Status When Identified Normal Operation, Includes Pauses During Maintenance
Shutdown Due Accident Ind Yes
Communication State Fed Ind Yes
Party Initiated Communication Local/state/federal Emergency Responder
Ignite Ind Yes
How Extinguished Local/state/federal Emergency Responder
Gas Consumed By Fire In Mcf 707
Explode Ind No
Num Pub Evacuated 0
On Off Shore Onshore
Onshore State Abbreviation Ms
Onshore Postal Code 38334
Onshore City Name Corinth
Onshore County Name Alcorn
Designated Location Not Applicable
Pipe Fac Name Corinth Compressor Station
Segment Name 034088
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 Esd System, But Excluding Product Drain Lines And Tubing
Installation Year 1994
Manufactured Year 1993
Material Involved Carbon Steel
Release Type Other
Release Type Details Emergency Shutdown (Esd) System Activated At Corinth Compressor Station And The Hp Block1 Blowdown Stack Ignited. An In-Direct Lightning Strike Caused Minor Damage To The Facility. Lightning Strike Damaged Small Control Fuse On Plc, Therefore Causing Failure On Esd System.
Class Location Type Class 1 Location
Could Be Hca No
Pir Radius 730
Heat Damage Ind No
Non Heat Damage Ind No
Did Occur In Mca Ind No
Est Cost Oper Paid 0
Est Cost Unintentional Release 43845
Est Cost Intentional Release 0
Est Cost Prop Damage 113626
Est Cost Emergency 0
Est Cost Other 0
Gas Cost In Mcf 1.85
Prpty 157471
Num Persons Hosp Not Ovnght 0
Num Injured Treated By Emt 0
Num Resident Building Affctd 0
Num Business Building Affctd 0
Wildlife Impact Ind No
Accident Psig 835
Gas Flow In Pipe In Mcf 250000
Mop Psig 935
Mop Cfr Section 192.619(A)(1) View CFR 49 §192
Maop Established Date 1954-07-08 00:00:00
Maop Reversal Flow Ind No
Accident Pressure Pressure Did Not Exceed Maop
Pressure Restriction Ind No
Gas Required Odorized 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 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 At this time the cause of the incident was due to an indirect lightning strike.
Employee Drug Test Ind No
Contractor Drug Test Ind No
Cause Natural Force Damage
Cause Details Lightning
Natural Force Type Lightning
Lightning Subtype Secondary Impact Such As Resulting Nearby Fires
Nf Extreme Weather Ind No
Preparer Name C*** S*******
Preparer Title Compliance Specialist
Preparer Email C************@t*******.com
Authorizer Name P*** S******
Authorizer Telephone 3043572245
Authorizer Email P***********@t*******.com
Narrative On april 28, 2023, at approximately 00:39 hrs. Cst, lightning struck the corinth compressor station which is located in alcorn county, mississippi. The lightning strike caused damage to a small control fuse on the plc and therefore caused the activation of the esd system at 00:40 hrs. Cst. Tc energy was notified by the public of a potential fire after the activation of the esd system. It was later confirmed lightning ignited the gas on horsepower block 1 (hpb1) blowdown silencer. It is unclear if the original lightning strike that damaged the fuse also started the fire or if there was a second lightning strike after the esd was initiated. Local ems responded to site. Nrc notification was made within 1-hour of confirmation of incident. The event was reported to nrc (nrc 1 hr. Report #: 1365859 and nrc 48-hr. Update report#: 1365979) at 02:18 hrs. Cst. Operations responded to the scene and identified the fire and gas release. The source of the gas was isolated, and the fire was allowed to burn down to a minimum where the local fire department extinguished the remaining flame. Operations returned the corinth compressor station to service at 15:45 hrs. Cst.

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