Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2024-12-02 — TX
Operator
Net Mexico Pipeline Partners, Llc
Cause
Equipment Failure
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$500
Incident datetime
2024-12-02 00:00 UTC
Report number
Location
TX
Narrative
On 11/05/2024 at approximately 04:45, due to an increasing flow rate that could not be controlled with a set point change, gas control called a technician to investigate the regulators at the efm 4 to net mexico meter station. Upon arrival, the technician found the station blowing gas to the atmosphere and discovered a broken 1" nipple on the #2 regulator run. At approximately 06:00, the technician shut the upstream manual valve and verified that the downstream pneumatic valve was closed. The technician then throttled the #1 regulator to achieve the desired set point given by gas control. At 06:30, the technician replaced the nipple with an xxh nipple, installed a new 1" valve, reconnected the tubing, and returned the station to normal service.
Detailed record list
Report Received Date
2024-12-02 00:00:00
Iyear
2024
Report Number
20240133
Supplemental Number
40820
Report Type
Supplemental Final
Operator Id
39223
Name
Net Mexico Pipeline Partners, Llc
Operator Street Address
1001 Louisiana Street, Suite 1000
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Time Zone
Central
Daylight Savings Ind
No
Location Latitude
27.74798194
Location Longitude
-97.82109908
Nrc Rpt Num
1415639
Additional Nrc Report Numbers
1415742
Commodity Released Type
Natural Gas
Unintentional Release
3230
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
No
Ignite Ind
No
Num Pub Evacuated
0
On Off Shore
Onshore
Onshore State Abbreviation
Tx
Onshore Postal Code
78380
Onshore City Name
Robstown
Onshore County Name
Nueces
Designated Location
Not Applicable
Pipe Fac Name
Efm 4 To Net Mexico Meter Station
Segment Name
Pin 57007
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
Intrastate
System Part Involved
Onshore Regulator/metering Station Equipment And Piping
Item Involved
Meter
Installation Year
2013
Manufactured Year
Unknown
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Connection Failure
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
757
Heat Damage Ind
No
Non Heat Damage Ind
No
Did Occur In Mca Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
4845
Est Cost Intentional Release
0
Est Cost Prop Damage
500
Est Cost Emergency
100
Est Cost Other
0
Gas Cost In Mcf
1.5
Prpty
5445
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
1015
Gas Flow In Pipe In Mcf
300000
Mop Psig
1200
Mop Cfr Section
192.619(A)(1)
Maop Established Date
2013-05-24 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
Controller
Operator Type
Operator Employee
Investigation Status
Yes, specify investigation result(s): (select all that apply)
Invest No Control Room Ind
Yes
Invest No Controller Ind
Yes
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Threaded Connection/coupling Failure
Eq Failure Type
Threaded Connection/coupling Failure
Other Stripped Ind
Pipe Nipple
Additional Vibration Ind
Yes
Preparer Name
G****** J**** D****
Preparer Title
Pipeline Engineer Codes And Standards
Preparer Email
G************@k***********.com
Preparer Telephone
8329770230
Authorizer Name
Z*** R*****
Authorizer Title
Director Of Codes And Standards
Authorizer Telephone
7134202609
Authorizer Email
Z**********@k***********.com
Narrative
On 11/05/2024 at approximately 04:45, due to an increasing flow rate that could not be controlled with a set point change, gas control called a technician to investigate the regulators at the efm 4 to net mexico meter station. Upon arrival, the technician found the station blowing gas to the atmosphere and discovered a broken 1" nipple on the #2 regulator run. At approximately 06:00, the technician shut the upstream manual valve and verified that the downstream pneumatic valve was closed. The technician then throttled the #1 regulator to achieve the desired set point given by gas control. At 06:30, the technician replaced the nipple with an xxh nipple, installed a new 1" valve, reconnected the tubing, and returned the station to normal service.
| Report Received Date | 2024-12-02 00:00:00 |
|---|---|
| Iyear | 2024 |
| Report Number | 20240133 |
| Supplemental Number | 40820 |
| Report Type | Supplemental Final |
| Operator Id | 39223 PHMSA Enforcement |
| Name | Net Mexico Pipeline Partners, Llc |
| Operator Street Address | 1001 Louisiana Street, Suite 1000 |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Time Zone | Central |
| Daylight Savings Ind | No |
| Location Latitude | 27.74798194 Google Maps OpenStreetMap |
| Location Longitude | -97.82109908 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1415639 NRC Report How to search |
| Additional Nrc Report Numbers | 1415742 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 3230 |
| 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 | No |
| Ignite Ind | No |
| Num Pub Evacuated | 0 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 78380 |
| Onshore City Name | Robstown |
| Onshore County Name | Nueces |
| Designated Location | Not Applicable |
| Pipe Fac Name | Efm 4 To Net Mexico Meter Station |
| Segment Name | Pin 57007 |
| 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 | Intrastate |
| System Part Involved | Onshore Regulator/metering Station Equipment And Piping |
| Item Involved | Meter |
| Installation Year | 2013 |
| Manufactured Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Connection Failure |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 757 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Did Occur In Mca Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 4845 |
| Est Cost Intentional Release | 0 |
| Est Cost Prop Damage | 500 |
| Est Cost Emergency | 100 |
| Est Cost Other | 0 |
| Gas Cost In Mcf | 1.5 |
| Prpty | 5445 |
| 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 | 1015 |
| Gas Flow In Pipe In Mcf | 300000 |
| Mop Psig | 1200 |
| Mop Cfr Section | 192.619(A)(1) View CFR 49 §192 |
| Maop Established Date | 2013-05-24 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 | Controller |
| Operator Type | Operator Employee |
| Investigation Status | Yes, specify investigation result(s): (select all that apply) |
| Invest No Control Room Ind | Yes |
| Invest No Controller Ind | Yes |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Threaded Connection/coupling Failure |
| Eq Failure Type | Threaded Connection/coupling Failure |
| Other Stripped Ind | Pipe Nipple |
| Additional Vibration Ind | Yes |
| Preparer Name | G****** J**** D**** |
| Preparer Title | Pipeline Engineer Codes And Standards |
| Preparer Email | G************@k***********.com |
| Preparer Telephone | 8329770230 |
| Authorizer Name | Z*** R***** |
| Authorizer Title | Director Of Codes And Standards |
| Authorizer Telephone | 7134202609 |
| Authorizer Email | Z**********@k***********.com |
| Narrative | On 11/05/2024 at approximately 04:45, due to an increasing flow rate that could not be controlled with a set point change, gas control called a technician to investigate the regulators at the efm 4 to net mexico meter station. Upon arrival, the technician found the station blowing gas to the atmosphere and discovered a broken 1" nipple on the #2 regulator run. At approximately 06:00, the technician shut the upstream manual valve and verified that the downstream pneumatic valve was closed. The technician then throttled the #1 regulator to achieve the desired set point given by gas control. At 06:30, the technician replaced the nipple with an xxh nipple, installed a new 1" valve, reconnected the tubing, and returned the station to normal service. |
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