Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2017-09-20 — TX
Operator
Atmos Energy Corporation - Mid-Tex
Cause
Equipment Failure
Commodity
—
Program
GD
Damage and Injuries
0 fatalities
1 injury
Property damage (nominal)
$0
Incident datetime
2017-09-20 21:02
Report number
Location
TX, DALLAS
Narrative
Additional nrc report number 1191273 on september 20, 2017, gas ignition occurred while performing a tie-in weld on a 16" main at 1847 levee st. And turtle creek in dallas, texas. There was a malfunction with the configuration of the gas mover system and the stopple valves, which reintroduced a small amount of gas into the pipe near where the welding operations were occurring. The air compressor was identified to be the source of the malfunction. The hoses were then disconnected and reconnected to a secondary compressor. When welding commenced on the 16" tie-in, the flash/ignition occurred within the main. Two employees of driver pipeline were injured and transported by ambulance to parkland hospital. One welder was released from the emergency room not requiring hospitalization, and the other welder was hospitalized and released on the afternoon of september 23, 2017 with minor injuries.
Detailed record list
Occurred At
2017-09-20 21:02:00
Year
2017
Report Received Date
2017-10-20 00:00:00
Iyear
2017.0
Report Number
20170092.0
Supplemental Number
30683.0
Report Type
Supplemental Final
Operator Id
31348
Name
Atmos Energy Corporation - Mid-Tex
Operator Street Address
5430 Lbj Freeway Suite 1800
Operator City Name
Dallas
Operator State Abbreviation
TX
Operator Postal Code
75240
Local Datetime
2017-09-20 21:02:00
Location Street Address
1847 E. Levee St. And Turtle Creek
Location City Name
Dallas
Location County Name
Dallas
Location State Abbreviation
TX
Location Postal Code
75207
Location Latitude
32.7914
Location Longitude
-96.8285
Nrc Rpt Datetime
2017-09-20 22:43:00
Nrc Rpt Num
1191038
Unintentional Release
1.0
Fatality Ind
No
Fatal
0
Injury Ind
Yes
Num Emp Injuries
0
Num Contr Injuries
1
Num Er Injuries
0
Num Worker Injuries
0
Num Gp Injuries
0
Injure
1
Ignite Ind
Yes
Explode Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2017-09-20 21:02:00
On Site Datetime
2017-09-20 21:02:00
Federal
No
Location Type
Operator-Controlled Property
Incident Area Type
Underground
Incident Area Subtype
Exposed Due To Excavation
Depth Of Cover
48.0
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Main
Installation Year
2017.0
Pipe Diameter
16.0
Pipe Specification
Api-5l 45th-Psl2
Pipe Manufacturer
Csi Tubular
Material Involved
Steel
Wt Steel
0.375
Release Type
Leak
Leak Type
Seal Or Packing
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
0.0
Est Cost Emergency
0.0
Est Cost Other
152.0
Est Cost Other Details
2 Overtime Hours For Sr. Field Construction Coordinator
Est Cost Unintentional Release
7.0
Prpty
159.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
0.0
Accident Psig
21.0
Normal Psig
21.0
Mop Psig
55.0
Accident Pressure
Pressure Did Not Exceed Maop
Scada In Place Ind
No
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Contractor Working For The Operator
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
No investigation of the control room was required since the control of pressure did not contribute to the incident.
Employee Drug Test Ind
No
Contractor Drug Test Ind
Yes
Num Contractors Tested
8
Num Contractors Failed
0
Cause
Equipment Failure
Cause Details
Other Equipment Failure
Eq Failure Type
Other Equipment Failure
Eq Failure Details
Electronic Malfunction In The Sul Air Compressor
Preparer Name
M***** D*******
Preparer Title
Operations Supervisor
Preparer Email
M**************@a**********.com
Preparer Telephone
214-426-7082
Preparer Fax
214-426-7081
Authorizer Name
M**** S*****
Authorizer Title
Director Regulatory And Compliance
Authorizer Telephone
214-206-2033
Authorizer Email
M***********@a**********.com
Narrative
Additional nrc report number 1191273 on september 20, 2017, gas ignition occurred while performing a tie-in weld on a 16" main at 1847 levee st. And turtle creek in dallas, texas. There was a malfunction with the configuration of the gas mover system and the stopple valves, which reintroduced a small amount of gas into the pipe near where the welding operations were occurring. The air compressor was identified to be the source of the malfunction. The hoses were then disconnected and reconnected to a secondary compressor. When welding commenced on the 16" tie-in, the flash/ignition occurred within the main. Two employees of driver pipeline were injured and transported by ambulance to parkland hospital. One welder was released from the emergency room not requiring hospitalization, and the other welder was hospitalized and released on the afternoon of september 23, 2017 with minor injuries.
| Occurred At | 2017-09-20 21:02:00 |
|---|---|
| Year | 2017 |
| Report Received Date | 2017-10-20 00:00:00 |
| Iyear | 2017.0 |
| Report Number | 20170092.0 |
| Supplemental Number | 30683.0 |
| Report Type | Supplemental Final |
| Operator Id | 31348 PHMSA Enforcement |
| Name | Atmos Energy Corporation - Mid-Tex |
| Operator Street Address | 5430 Lbj Freeway Suite 1800 |
| Operator City Name | Dallas |
| Operator State Abbreviation | TX |
| Operator Postal Code | 75240 |
| Local Datetime | 2017-09-20 21:02:00 |
| Location Street Address | 1847 E. Levee St. And Turtle Creek |
| Location City Name | Dallas |
| Location County Name | Dallas |
| Location State Abbreviation | TX |
| Location Postal Code | 75207 |
| Location Latitude | 32.7914 Google Maps OpenStreetMap |
| Location Longitude | -96.8285 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2017-09-20 22:43:00 |
| Nrc Rpt Num | 1191038 NRC Report How to search |
| Unintentional Release | 1.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | Yes |
| Num Emp Injuries | 0 |
| Num Contr Injuries | 1 |
| Num Er Injuries | 0 |
| Num Worker Injuries | 0 |
| Num Gp Injuries | 0 |
| Injure | 1 |
| Ignite Ind | Yes |
| Explode Ind | No |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2017-09-20 21:02:00 |
| On Site Datetime | 2017-09-20 21:02:00 |
| Federal | No |
| Location Type | Operator-Controlled Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Exposed Due To Excavation |
| Depth Of Cover | 48.0 |
| Crossing | No |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Main |
| Installation Year | 2017.0 |
| Pipe Diameter | 16.0 |
| Pipe Specification | Api-5l 45th-Psl2 |
| Pipe Manufacturer | Csi Tubular |
| Material Involved | Steel |
| Wt Steel | 0.375 |
| Release Type | Leak |
| Leak Type | Seal Or Packing |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 0.0 |
| Est Cost Emergency | 0.0 |
| Est Cost Other | 152.0 |
| Est Cost Other Details | 2 Overtime Hours For Sr. Field Construction Coordinator |
| Est Cost Unintentional Release | 7.0 |
| Prpty | 159.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 0.0 |
| Accident Psig | 21.0 |
| Normal Psig | 21.0 |
| Mop Psig | 55.0 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Scada In Place Ind | No |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Contractor Working For The Operator |
| 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 | No investigation of the control room was required since the control of pressure did not contribute to the incident. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | Yes |
| Num Contractors Tested | 8 |
| Num Contractors Failed | 0 |
| Cause | Equipment Failure |
| Cause Details | Other Equipment Failure |
| Eq Failure Type | Other Equipment Failure |
| Eq Failure Details | Electronic Malfunction In The Sul Air Compressor |
| Preparer Name | M***** D******* |
| Preparer Title | Operations Supervisor |
| Preparer Email | M**************@a**********.com |
| Preparer Telephone | 214-426-7082 |
| Preparer Fax | 214-426-7081 |
| Authorizer Name | M**** S***** |
| Authorizer Title | Director Regulatory And Compliance |
| Authorizer Telephone | 214-206-2033 |
| Authorizer Email | M***********@a**********.com |
| Narrative | Additional nrc report number 1191273 on september 20, 2017, gas ignition occurred while performing a tie-in weld on a 16" main at 1847 levee st. And turtle creek in dallas, texas. There was a malfunction with the configuration of the gas mover system and the stopple valves, which reintroduced a small amount of gas into the pipe near where the welding operations were occurring. The air compressor was identified to be the source of the malfunction. The hoses were then disconnected and reconnected to a secondary compressor. When welding commenced on the 16" tie-in, the flash/ignition occurred within the main. Two employees of driver pipeline were injured and transported by ambulance to parkland hospital. One welder was released from the emergency room not requiring hospitalization, and the other welder was hospitalized and released on the afternoon of september 23, 2017 with minor injuries. |
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