Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2011-04-26 — OK
Operator
Oneok Westex Transmission, Llc
Cause
Incorrect Operation
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$96,092
Incident datetime
2011-04-26 08:15
Report number
Location
OK
Narrative
The incident occurred on 26 april 2011 at approximately 0815 hours when gas released through an open flange was introduced into the compressor air intake and subsequently ignited inside the turbocharger, which then failed and caught fire. The investigation to date indicates that all processes were not adequately followed by the pipeline operator. Pursuant to DOT regulations, the pipeline operator was disqualified immediately after the incident. The investigation to date indicates that a compressor failure did not cause the incident. Supplemental: updated number evacuated, equipment installation year, incident costs, and pressure at time of incident. Internal investigation confirmed the incident was caused by failure to follow appropriate operating procedures and was not any equipment failure.
Detailed record list
Report Received Date
2011-05-26 00:00:00
Iyear
2011
Report Number
20110158
Supplemental Number
16185
Report Type
Supplemental Final
Operator Id
31531
Name
Oneok Westex Transmission, Llc
Operator Street Address
100 West Fifth Street
Operator City Name
Tulsa
Operator State Abbreviation
OK
Operator Postal Code
74103
Local Datetime
2011-04-26 08:15:00
Location Latitude
31.77944
Location Longitude
-102.24111
Nrc Rpt Num
974050
Nrc Rpt Datetime
2011-04-26 10:43:00
Commodity Released Type
Natural Gas
Unintentional Release
74
Intentional Release
0
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2011-04-26 08:15:00
Restart Datetime
2011-05-06 13:00:00
Ignite Ind
Yes
Explode Ind
Yes
Num Pub Evacuated
35
Incident Identified Datetime
2011-04-26 08:15:00
On Site Datetime
2011-04-26 08:15:00
On Off Shore
Onshore
Onshore State Abbreviation
Tx
Onshore Postal Code
79766
Onshore City Name
Odessa
Onshore County Name
Ector
Pipe Fac Name
Dora Roberts Compressor Station
Segment Name
Unit 6051
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 Compressor Station Equipment And Piping
Item Involved
Compressor
Installation Year
1983
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
See Part H Narrative Description
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
527
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
333
Est Cost Intentional Release
0
Est Cost Prop Damage
96092
Est Cost Emergency
500
Est Cost Other
0
Prpty
96925
Accident Psig
854
Mop Psig
960
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
Onsite personnel present at time of incident, control room personnel were not involved
Employee Drug Test Ind
Yes
Contractor Drug Test Ind
No
Num Employees Tested
1
Num Employees Failed
0
Cause
Incorrect Operation
Cause Details
Other Incorrect Operation
Operation Type
Other Incorrect Operation
Operation Details
See Part H Narrative Description
Related Failure Follow Ind
Yes
Category Type
Routine Maintenance
Operator Qualification Ind
No
Preparer Name
P**** F***
Preparer Title
Senior Pipeline Safety Engineer
Preparer Email
P*********@o****.com
Preparer Telephone
918 588 7131
Preparer Fax
918 732 1311
Authorizer Name
W***** R* D*****
Authorizer Title
Vice President
Authorizer Telephone
918 588 7424
Authorizer Email
W*********@o****.com
Narrative
The incident occurred on 26 april 2011 at approximately 0815 hours when gas released through an open flange was introduced into the compressor air intake and subsequently ignited inside the turbocharger, which then failed and caught fire. The investigation to date indicates that all processes were not adequately followed by the pipeline operator. Pursuant to DOT regulations, the pipeline operator was disqualified immediately after the incident. The investigation to date indicates that a compressor failure did not cause the incident. Supplemental: updated number evacuated, equipment installation year, incident costs, and pressure at time of incident. Internal investigation confirmed the incident was caused by failure to follow appropriate operating procedures and was not any equipment failure.
| Report Received Date | 2011-05-26 00:00:00 |
|---|---|
| Iyear | 2011 |
| Report Number | 20110158 |
| Supplemental Number | 16185 |
| Report Type | Supplemental Final |
| Operator Id | 31531 PHMSA Enforcement |
| Name | Oneok Westex Transmission, Llc |
| Operator Street Address | 100 West Fifth Street |
| Operator City Name | Tulsa |
| Operator State Abbreviation | OK |
| Operator Postal Code | 74103 |
| Local Datetime | 2011-04-26 08:15:00 |
| Location Latitude | 31.77944 Google Maps OpenStreetMap |
| Location Longitude | -102.24111 Google Maps OpenStreetMap |
| Nrc Rpt Num | 974050 NRC Report How to search |
| Nrc Rpt Datetime | 2011-04-26 10:43:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 74 |
| Intentional Release | 0 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2011-04-26 08:15:00 |
| Restart Datetime | 2011-05-06 13:00:00 |
| Ignite Ind | Yes |
| Explode Ind | Yes |
| Num Pub Evacuated | 35 |
| Incident Identified Datetime | 2011-04-26 08:15:00 |
| On Site Datetime | 2011-04-26 08:15:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 79766 |
| Onshore City Name | Odessa |
| Onshore County Name | Ector |
| Pipe Fac Name | Dora Roberts Compressor Station |
| Segment Name | Unit 6051 |
| 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 Compressor Station Equipment And Piping |
| Item Involved | Compressor |
| Installation Year | 1983 |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | See Part H Narrative Description |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 527 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 333 |
| Est Cost Intentional Release | 0 |
| Est Cost Prop Damage | 96092 |
| Est Cost Emergency | 500 |
| Est Cost Other | 0 |
| Prpty | 96925 |
| Accident Psig | 854 |
| Mop Psig | 960 |
| 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 | Onsite personnel present at time of incident, control room personnel were not involved |
| Employee Drug Test Ind | Yes |
| Contractor Drug Test Ind | No |
| Num Employees Tested | 1 |
| Num Employees Failed | 0 |
| Cause | Incorrect Operation |
| Cause Details | Other Incorrect Operation |
| Operation Type | Other Incorrect Operation |
| Operation Details | See Part H Narrative Description |
| Related Failure Follow Ind | Yes |
| Category Type | Routine Maintenance |
| Operator Qualification Ind | No |
| Preparer Name | P**** F*** |
| Preparer Title | Senior Pipeline Safety Engineer |
| Preparer Email | P*********@o****.com |
| Preparer Telephone | 918 588 7131 |
| Preparer Fax | 918 732 1311 |
| Authorizer Name | W***** R* D***** |
| Authorizer Title | Vice President |
| Authorizer Telephone | 918 588 7424 |
| Authorizer Email | W*********@o****.com |
| Narrative | The incident occurred on 26 april 2011 at approximately 0815 hours when gas released through an open flange was introduced into the compressor air intake and subsequently ignited inside the turbocharger, which then failed and caught fire. The investigation to date indicates that all processes were not adequately followed by the pipeline operator. Pursuant to DOT regulations, the pipeline operator was disqualified immediately after the incident. The investigation to date indicates that a compressor failure did not cause the incident. Supplemental: updated number evacuated, equipment installation year, incident costs, and pressure at time of incident. Internal investigation confirmed the incident was caused by failure to follow appropriate operating procedures and was not any equipment failure. |
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