Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2015-10-10 — OK
Operator
Transcontinental Gas Pipe Line Company
Cause
Other Incident Cause
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$0
Incident datetime
2015-10-10 08:47
Report number
Location
OK
Narrative
Due to the location of a valve on a mainline transmission system an attached valve grease line had to be extended. A function of the modification process included cutting the grease line. When the grease line was cut an internal valve component failed allowing gas to escape, the transmission line segment was isolated and the grease line was repaired with a coupling. After the valve grease line was repaired the transmission line segment was pressured up and put back in service.
Detailed record list
Report Received Date
2015-10-28 00:00:00
Iyear
2015
Report Number
20150127
Supplemental Number
16914
Report Type
Supplemental Final
Operator Id
19570
Name
Transcontinental Gas Pipe Line Company
Operator Street Address
One Williams Center Md 43-4
Operator City Name
Tulsa
Operator State Abbreviation
OK
Operator Postal Code
74172
Local Datetime
2015-10-10 08:15:00
Location Latitude
40.36413118
Location Longitude
-74.68269956
Nrc Rpt Num
1130535
Nrc Rpt Datetime
2015-10-10 09:15:00
Commodity Released Type
Natural Gas
Unintentional Release
6271
Intentional Release
0
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2015-10-10 11:20:00
Restart Datetime
2015-10-10 17:14:00
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2015-10-10 08:47:00
On Site Datetime
2015-10-10 09:40:00
On Off Shore
Onshore
Onshore State Abbreviation
Nj
Onshore Postal Code
08540
Onshore City Name
Princeton
Onshore County Name
Mecer
Designated Location
Milepost
Designated Name
1776.75
Pipe Fac Name
Mainline B Coventry Farms
Segment Name
Mlv J951
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance
Crossing
No
Pipe Facility Type
Interstate
System Part Involved
Onshore Pipeline, Including Valve Sites
Item Involved
Tubing
Installation Year
2015
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
Operator Technicians Intentionally Cut A Valve Grease Line During A Modification Process. An Internal Valve Component (Check Valve) Failed Allowing Gas To Escape.
Class Location Type
Class 2 Location
Could Be Hca
No
Pir Radius
660
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
15700
Est Cost Intentional Release
0
Est Cost Prop Damage
0
Est Cost Emergency
0
Est Cost Other
0
Prpty
15700
Accident Psig
721
Mop Psig
800
Mop Cfr Section
192.619(A)(1)
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Upstream Valve Type Ind
Automatic
Downstream Valve Type Ind
Automatic
Length Segment Isolated
17688
Internal Inspection Ind
Yes
Operation Complications Ind
No
Pipeline Function
Transmission System
Scada In Place Ind
No
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Investigation Status
No, the facility was not monitored by a controller(s) at the time of the incident
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Other Incident Cause
Cause Details
Miscellaneous
Other Type
Miscellaneous
Misc Details
A Modification To A Valve Involved Cutting A Valve Grease Line. The Valve Body Was Blown Down Of All Gas But An Internal Check Valve Failed And Allowed Gas To Escape From The Grease Line. The Affected Gas Line Segment Was Isolated Until The Line Was Completely Blown Down, The Grease Line Was Repaired And The Affected Gas Line Segment Was Pressured Up And Put Back Into Service.
Preparer Name
J***** L****
Preparer Title
Regulatory Compliance Specialist
Preparer Email
J***********@w*******.com
Preparer Telephone
7132152995
Preparer Fax
7132152000
Authorizer Name
M**** S****
Authorizer Title
Manager Pipeline Safety
Authorizer Telephone
7132152111
Authorizer Email
M**********@w*******.com
Narrative
Due to the location of a valve on a mainline transmission system an attached valve grease line had to be extended. A function of the modification process included cutting the grease line. When the grease line was cut an internal valve component failed allowing gas to escape, the transmission line segment was isolated and the grease line was repaired with a coupling. After the valve grease line was repaired the transmission line segment was pressured up and put back in service.
| Report Received Date | 2015-10-28 00:00:00 |
|---|---|
| Iyear | 2015 |
| Report Number | 20150127 |
| Supplemental Number | 16914 |
| Report Type | Supplemental Final |
| Operator Id | 19570 PHMSA Enforcement |
| Name | Transcontinental Gas Pipe Line Company |
| Operator Street Address | One Williams Center Md 43-4 |
| Operator City Name | Tulsa |
| Operator State Abbreviation | OK |
| Operator Postal Code | 74172 |
| Local Datetime | 2015-10-10 08:15:00 |
| Location Latitude | 40.36413118 Google Maps OpenStreetMap |
| Location Longitude | -74.68269956 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1130535 NRC Report How to search |
| Nrc Rpt Datetime | 2015-10-10 09:15:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 6271 |
| Intentional Release | 0 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2015-10-10 11:20:00 |
| Restart Datetime | 2015-10-10 17:14:00 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2015-10-10 08:47:00 |
| On Site Datetime | 2015-10-10 09:40:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Nj |
| Onshore Postal Code | 08540 |
| Onshore City Name | Princeton |
| Onshore County Name | Mecer |
| Designated Location | Milepost |
| Designated Name | 1776.75 |
| Pipe Fac Name | Mainline B Coventry Farms |
| Segment Name | Mlv J951 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance |
| Crossing | No |
| Pipe Facility Type | Interstate |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| Item Involved | Tubing |
| Installation Year | 2015 |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | Operator Technicians Intentionally Cut A Valve Grease Line During A Modification Process. An Internal Valve Component (Check Valve) Failed Allowing Gas To Escape. |
| Class Location Type | Class 2 Location |
| Could Be Hca | No |
| Pir Radius | 660 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 15700 |
| Est Cost Intentional Release | 0 |
| Est Cost Prop Damage | 0 |
| Est Cost Emergency | 0 |
| Est Cost Other | 0 |
| Prpty | 15700 |
| Accident Psig | 721 |
| Mop Psig | 800 |
| Mop Cfr Section | 192.619(A)(1) View CFR 49 §192 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Pressure Restriction Ind | No |
| Upstream Valve Type Ind | Automatic |
| Downstream Valve Type Ind | Automatic |
| Length Segment Isolated | 17688 |
| Internal Inspection Ind | Yes |
| Operation Complications Ind | No |
| Pipeline Function | Transmission System |
| Scada In Place Ind | No |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Investigation Status | No, the facility was not monitored by a controller(s) at the time of the incident |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Other Incident Cause |
| Cause Details | Miscellaneous |
| Other Type | Miscellaneous |
| Misc Details | A Modification To A Valve Involved Cutting A Valve Grease Line. The Valve Body Was Blown Down Of All Gas But An Internal Check Valve Failed And Allowed Gas To Escape From The Grease Line. The Affected Gas Line Segment Was Isolated Until The Line Was Completely Blown Down, The Grease Line Was Repaired And The Affected Gas Line Segment Was Pressured Up And Put Back Into Service. |
| Preparer Name | J***** L**** |
| Preparer Title | Regulatory Compliance Specialist |
| Preparer Email | J***********@w*******.com |
| Preparer Telephone | 7132152995 |
| Preparer Fax | 7132152000 |
| Authorizer Name | M**** S**** |
| Authorizer Title | Manager Pipeline Safety |
| Authorizer Telephone | 7132152111 |
| Authorizer Email | M**********@w*******.com |
| Narrative | Due to the location of a valve on a mainline transmission system an attached valve grease line had to be extended. A function of the modification process included cutting the grease line. When the grease line was cut an internal valve component failed allowing gas to escape, the transmission line segment was isolated and the grease line was repaired with a coupling. After the valve grease line was repaired the transmission line segment was pressured up and put back in service. |
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