Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2012-11-05 — TX
Operator
Centerpoint Energy Gas Transmission
Cause
Equipment Failure
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$0
Incident datetime
2012-11-05 14:47
Report number
Location
TX
Narrative
Vibration broke a nipple on top of the relief valve and caused the relief to go off. Relief valve moved off of compressor skid to remidiate the issue.
Detailed record list
Report Received Date
2012-11-15 00:00:00
Iyear
2012
Report Number
20120114
Supplemental Number
16295
Report Type
Supplemental Final
Operator Id
Name
Centerpoint Energy Gas Transmission
Operator Street Address
1111 Louisiana Street
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2012-11-05 14:06:00
Location Latitude
35.37369
Location Longitude
-91.837477
Nrc Rpt Num
1029736
Nrc Rpt Datetime
2012-11-05 15:35:00
Commodity Released Type
Natural Gas
Unintentional Release
4266
Intentional Release
0
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
No
Shutdown Explain
Compressor Station Relief Valve.
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2012-11-05 14:47:00
On Site Datetime
2012-11-05 14:47:00
On Off Shore
Onshore
Onshore State Abbreviation
Ar
Onshore Postal Code
72085
Onshore City Name
Letona
Onshore County Name
White
Designated Location
Milepost
Designated Name
Searcy Comp
Pipe Fac Name
Searcy Compressor Station
Segment Name
Searcy Compressor Station Unit 2
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
Other
Item Involved Details
Nipple
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Crack
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
523
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
14069
Est Cost Intentional Release
0
Est Cost Prop Damage
0
Est Cost Emergency
0
Est Cost Other
0
Prpty
14069
Accident Psig
1020
Mop Psig
1260
Mop Cfr Section
Not On Omb-Approved Form When Submitted
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
No
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
Controller actions did not contribute to the event.
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
J**** C****
Preparer Title
Dot Waiver Specialist
Preparer Email
J**********@c****************.com
Preparer Telephone
3184293664
Preparer Fax
3184293927
Authorizer Name
J***** L* C*****
Authorizer Title
Manager Of Dot Compliance
Authorizer Telephone
3184293606
Authorizer Email
J************@c****************.com
Narrative
Vibration broke a nipple on top of the relief valve and caused the relief to go off. Relief valve moved off of compressor skid to remidiate the issue.
| Report Received Date | 2012-11-15 00:00:00 |
|---|---|
| Iyear | 2012 |
| Report Number | 20120114 |
| Supplemental Number | 16295 |
| Report Type | Supplemental Final |
| Operator Id | 602 PHMSA Enforcement |
| Name | Centerpoint Energy Gas Transmission |
| Operator Street Address | 1111 Louisiana Street |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2012-11-05 14:06:00 |
| Location Latitude | 35.37369 Google Maps OpenStreetMap |
| Location Longitude | -91.837477 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1029736 NRC Report How to search |
| Nrc Rpt Datetime | 2012-11-05 15:35:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 4266 |
| Intentional Release | 0 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Compressor Station Relief Valve. |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2012-11-05 14:47:00 |
| On Site Datetime | 2012-11-05 14:47:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Ar |
| Onshore Postal Code | 72085 |
| Onshore City Name | Letona |
| Onshore County Name | White |
| Designated Location | Milepost |
| Designated Name | Searcy Comp |
| Pipe Fac Name | Searcy Compressor Station |
| Segment Name | Searcy Compressor Station Unit 2 |
| 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 | Other |
| Item Involved Details | Nipple |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Crack |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 523 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 14069 |
| Est Cost Intentional Release | 0 |
| Est Cost Prop Damage | 0 |
| Est Cost Emergency | 0 |
| Est Cost Other | 0 |
| Prpty | 14069 |
| Accident Psig | 1020 |
| Mop Psig | 1260 |
| Mop Cfr Section | Not On Omb-Approved Form When Submitted 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 | No |
| 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 | Controller actions did not contribute to the event. |
| 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 | J**** C**** |
| Preparer Title | Dot Waiver Specialist |
| Preparer Email | J**********@c****************.com |
| Preparer Telephone | 3184293664 |
| Preparer Fax | 3184293927 |
| Authorizer Name | J***** L* C***** |
| Authorizer Title | Manager Of Dot Compliance |
| Authorizer Telephone | 3184293606 |
| Authorizer Email | J************@c****************.com |
| Narrative | Vibration broke a nipple on top of the relief valve and caused the relief to go off. Relief valve moved off of compressor skid to remidiate the issue. |
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