Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2012-02-01 — TX
Operator
Tennessee Gas Pipeline Co (El Paso)
Cause
Equipment Failure
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$103,000
Incident datetime
2012-02-01 07:46
Report number
Location
TX
Narrative
Natural gas was released at tennessee gas pipeline (tgp) company's compressor station 249 from unit 1a when a compressor rod failed in its threads. The station's esd system activated and evacuated the station of natural gas. The unit has been repaired and is back in service. A root cause analysis determined that the failure was likely due to a combination of factors, including high cycle low nominal stress axial fatigue, insufficient tightening during the latest maintenance activity, and the presence of lower strength material not meeting the chemistry and mechanical property requirements of the specification for new replacement compressor rods.
Detailed record list
Report Received Date
2012-02-27 00:00:00
Iyear
2012
Report Number
20120023
Supplemental Number
16154
Report Type
Supplemental Final
Operator Id
19160
Name
Tennessee Gas Pipeline Co (El Paso)
Operator Street Address
1001 Louisiana St
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2012-02-01 07:46:00
Location Latitude
42.75412
Location Longitude
-74.401787
Nrc Rpt Num
1001854
Nrc Rpt Datetime
2012-02-01 09:36:00
Commodity Released Type
Natural Gas
Unintentional Release
492
Intentional Release
0
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2012-02-01 07:46:00
Restart Datetime
2012-02-06 11:45:00
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2012-02-01 07:46:00
On Site Datetime
2012-02-01 07:46:00
On Off Shore
Onshore
Onshore State Abbreviation
Ny
Onshore Postal Code
12031-0110
Onshore City Name
Carlisle
Onshore County Name
Schoharie
Designated Location
Milepost
Designated Name
249.00
Pipe Fac Name
Compressor Station 249
Segment Name
249
Federal
No
Location Type
Operator-Controlled Property
Incident Area Type
Aboveground
Incident Area Subtype
Other
Incident Area Details
Compressor Engine Within A Building
Crossing
No
Pipe Facility Type
Interstate
System Part Involved
Onshore Compressor Station Equipment And Piping
Item Involved
Compressor
Installation Year
1964
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Other
Leak Type Other
Compressor Component Failure
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
571
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
1300
Est Cost Intentional Release
0
Est Cost Prop Damage
103000
Est Cost Emergency
0
Est Cost Other
0
Prpty
104300
Accident Psig
724
Mop Psig
760
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
No
Scada Conf Ind
No
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
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
Pressures remained within normal operating range.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Compressor Or Compressor-Related Equipment
Eq Failure Type
Compressor Or Compressor-Related Equipment
Other Compressor Ind
Other
Other Compressor Details
Compressor Rod Fracture At The Threaded Connection To The Crosshead.
Additional Defect Ind
Yes
Additional Installation Ind
Yes
Eq Additional Other Ind
Yes
Eq Additional Other Details
Failure Due To High Cycle Low Nominal Stress Axial Fatigue.
Preparer Name
M***** M*****
Preparer Title
Compliance Engineer
Preparer Email
M************@k***********.com
Preparer Telephone
205-325-3863
Preparer Fax
205-325-3508
Authorizer Name
R*** G*****
Authorizer Title
Director Compliance - Codes And Standard
Authorizer Telephone
713-420-5433
Authorizer Email
R**********@k***********.com
Narrative
Natural gas was released at tennessee gas pipeline (tgp) company's compressor station 249 from unit 1a when a compressor rod failed in its threads. The station's esd system activated and evacuated the station of natural gas. The unit has been repaired and is back in service. A root cause analysis determined that the failure was likely due to a combination of factors, including high cycle low nominal stress axial fatigue, insufficient tightening during the latest maintenance activity, and the presence of lower strength material not meeting the chemistry and mechanical property requirements of the specification for new replacement compressor rods.
| Report Received Date | 2012-02-27 00:00:00 |
|---|---|
| Iyear | 2012 |
| Report Number | 20120023 |
| Supplemental Number | 16154 |
| Report Type | Supplemental Final |
| Operator Id | 19160 PHMSA Enforcement |
| Name | Tennessee Gas Pipeline Co (El Paso) |
| Operator Street Address | 1001 Louisiana St |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2012-02-01 07:46:00 |
| Location Latitude | 42.75412 Google Maps OpenStreetMap |
| Location Longitude | -74.401787 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1001854 NRC Report How to search |
| Nrc Rpt Datetime | 2012-02-01 09:36:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 492 |
| Intentional Release | 0 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2012-02-01 07:46:00 |
| Restart Datetime | 2012-02-06 11:45:00 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2012-02-01 07:46:00 |
| On Site Datetime | 2012-02-01 07:46:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Ny |
| Onshore Postal Code | 12031-0110 |
| Onshore City Name | Carlisle |
| Onshore County Name | Schoharie |
| Designated Location | Milepost |
| Designated Name | 249.00 |
| Pipe Fac Name | Compressor Station 249 |
| Segment Name | 249 |
| Federal | No |
| Location Type | Operator-Controlled Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Other |
| Incident Area Details | Compressor Engine Within A Building |
| Crossing | No |
| Pipe Facility Type | Interstate |
| System Part Involved | Onshore Compressor Station Equipment And Piping |
| Item Involved | Compressor |
| Installation Year | 1964 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Other |
| Leak Type Other | Compressor Component Failure |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 571 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 1300 |
| Est Cost Intentional Release | 0 |
| Est Cost Prop Damage | 103000 |
| Est Cost Emergency | 0 |
| Est Cost Other | 0 |
| Prpty | 104300 |
| Accident Psig | 724 |
| Mop Psig | 760 |
| 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 | No |
| Scada Conf Ind | No |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| 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 | Pressures remained within normal operating range. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Compressor Or Compressor-Related Equipment |
| Eq Failure Type | Compressor Or Compressor-Related Equipment |
| Other Compressor Ind | Other |
| Other Compressor Details | Compressor Rod Fracture At The Threaded Connection To The Crosshead. |
| Additional Defect Ind | Yes |
| Additional Installation Ind | Yes |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Failure Due To High Cycle Low Nominal Stress Axial Fatigue. |
| Preparer Name | M***** M***** |
| Preparer Title | Compliance Engineer |
| Preparer Email | M************@k***********.com |
| Preparer Telephone | 205-325-3863 |
| Preparer Fax | 205-325-3508 |
| Authorizer Name | R*** G***** |
| Authorizer Title | Director Compliance - Codes And Standard |
| Authorizer Telephone | 713-420-5433 |
| Authorizer Email | R**********@k***********.com |
| Narrative | Natural gas was released at tennessee gas pipeline (tgp) company's compressor station 249 from unit 1a when a compressor rod failed in its threads. The station's esd system activated and evacuated the station of natural gas. The unit has been repaired and is back in service. A root cause analysis determined that the failure was likely due to a combination of factors, including high cycle low nominal stress axial fatigue, insufficient tightening during the latest maintenance activity, and the presence of lower strength material not meeting the chemistry and mechanical property requirements of the specification for new replacement compressor rods. |
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