Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2015-10-10 — MI
Operator
Consumers Energy Co
Cause
Equipment Failure
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$0
Incident datetime
2015-10-10 05:37
Report number
Location
MI
Narrative
On saturday, october 10, 2015 at approximately 05:37 consumers energy gas control representative received an alarm at the white pigeon compressor station identifying a potential problem with the emergency shut-down system (esd) in plant #3. The white pigeon compressor station is located in white pigeon, michigan (st. Joseph county) a station mechanic arrived at the location at approximately 06:02 and observed gas blowing from firegate valve #638. The mechanic manually closed the redundant valve, valve #639 shutting down the blowing gas at approximately 06:09. There were no injuries or significant property damage associated with the gas release. Subsequent investigation of the incident determined a failed operator resulting from a blown fuse in the actuator caused the valve to performed an unintended valve travel sequence causing the valve to fail safe in the open position and release gas. Consumers energy is continuing to collaborate with the rotork representative to explore equipment design options to provide an advance trouble indication without inadvertently performing an immediate esd on failure of the fuse. Additional internal measures have also been put in place to minimize the potential for re-occurrence.
Detailed record list
Report Received Date
2015-11-09 00:00:00
Iyear
2015
Report Number
20150134
Supplemental Number
17030
Report Type
Supplemental Final
Operator Id
2748
Name
Consumers Energy Co
Operator Street Address
One Energy Plaza
Operator City Name
Jackson
Operator State Abbreviation
MI
Operator Postal Code
49201
Local Datetime
2015-10-10 05:37:00
Location Latitude
41.802251
Location Longitude
-85.586686
Nrc Rpt Num
1130580
Nrc Rpt Datetime
2015-10-10 21:24:00
Commodity Released Type
Natural Gas
Unintentional Release
13500
Intentional Release
0
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
No
Shutdown Explain
The Station Mechanic Closed A Redundant Valve Stopping The Gas Flow
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2015-10-10 05:37:00
On Site Datetime
2015-10-10 06:02:00
On Off Shore
Onshore
Onshore State Abbreviation
Mi
Onshore Postal Code
49099
Onshore City Name
White Pigeon
Onshore County Name
Saint Joseph
Designated Location
Milepost
Designated Name
638
Pipe Fac Name
White Pigeon Compressor Station
Segment Name
Plant #3
Federal
No
Location Type
Operator-Controlled Property
Incident Area Type
Aboveground
Incident Area Subtype
Other
Incident Area Details
Firegate Blowdown Valve
Crossing
No
Pipe Facility Type
Intrastate
System Part Involved
Onshore Compressor Station Equipment And Piping
Item Involved
Valve
Valve Type
Auxiliary Or Other Valve
Installation Year
2010
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
Firegate Valve Failed Safe In The Open Position Resulting In A Release Of Gas
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
172
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
100710
Est Cost Intentional Release
0
Est Cost Prop Damage
0
Est Cost Emergency
1778
Est Cost Other
0
Prpty
102488
Accident Psig
708
Mop Psig
960
Mop Cfr Section
192.619(A)(2)
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
Yes
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
The incident was identified by the control room representative and the appropriate notififcations were made.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Malfunction Of Control/relief Equipment
Eq Failure Type
Malfunction Of Control/relief Equipment
Other Control Relief Ind
Yes
Other Control Relief Details
A Failed Operator Resulting From A Blown Fuse In The Actuator Caused The Valve To Performed An Unintended Valve Travel Sequence Causing The Valve To Fail Safe In The Open Position And Release Gas.
Eq Additional Other Ind
Yes
Eq Additional Other Details
Incorrect Fuse Installed During Manufacturing
Preparer Name
C******* K***
Preparer Title
Senior Engineering Technical Analyst I
Preparer Email
C************@c********.com
Preparer Telephone
571-788-0509
Authorizer Name
A***** L* W***
Authorizer Title
Gas Regulatory Services Lead
Authorizer Telephone
517-545-8746
Authorizer Email
A**********@c********
Narrative
On saturday, october 10, 2015 at approximately 05:37 consumers energy gas control representative received an alarm at the white pigeon compressor station identifying a potential problem with the emergency shut-down system (esd) in plant #3. The white pigeon compressor station is located in white pigeon, michigan (st. Joseph county) a station mechanic arrived at the location at approximately 06:02 and observed gas blowing from firegate valve #638. The mechanic manually closed the redundant valve, valve #639 shutting down the blowing gas at approximately 06:09. There were no injuries or significant property damage associated with the gas release. Subsequent investigation of the incident determined a failed operator resulting from a blown fuse in the actuator caused the valve to performed an unintended valve travel sequence causing the valve to fail safe in the open position and release gas. Consumers energy is continuing to collaborate with the rotork representative to explore equipment design options to provide an advance trouble indication without inadvertently performing an immediate esd on failure of the fuse. Additional internal measures have also been put in place to minimize the potential for re-occurrence.
| Report Received Date | 2015-11-09 00:00:00 |
|---|---|
| Iyear | 2015 |
| Report Number | 20150134 |
| Supplemental Number | 17030 |
| Report Type | Supplemental Final |
| Operator Id | 2748 PHMSA Enforcement |
| Name | Consumers Energy Co |
| Operator Street Address | One Energy Plaza |
| Operator City Name | Jackson |
| Operator State Abbreviation | MI |
| Operator Postal Code | 49201 |
| Local Datetime | 2015-10-10 05:37:00 |
| Location Latitude | 41.802251 Google Maps OpenStreetMap |
| Location Longitude | -85.586686 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1130580 NRC Report How to search |
| Nrc Rpt Datetime | 2015-10-10 21:24:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 13500 |
| Intentional Release | 0 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | The Station Mechanic Closed A Redundant Valve Stopping The Gas Flow |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2015-10-10 05:37:00 |
| On Site Datetime | 2015-10-10 06:02:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Mi |
| Onshore Postal Code | 49099 |
| Onshore City Name | White Pigeon |
| Onshore County Name | Saint Joseph |
| Designated Location | Milepost |
| Designated Name | 638 |
| Pipe Fac Name | White Pigeon Compressor Station |
| Segment Name | Plant #3 |
| Federal | No |
| Location Type | Operator-Controlled Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Other |
| Incident Area Details | Firegate Blowdown Valve |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| System Part Involved | Onshore Compressor Station Equipment And Piping |
| Item Involved | Valve |
| Valve Type | Auxiliary Or Other Valve |
| Installation Year | 2010 |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | Firegate Valve Failed Safe In The Open Position Resulting In A Release Of Gas |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 172 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 100710 |
| Est Cost Intentional Release | 0 |
| Est Cost Prop Damage | 0 |
| Est Cost Emergency | 1778 |
| Est Cost Other | 0 |
| Prpty | 102488 |
| Accident Psig | 708 |
| Mop Psig | 960 |
| Mop Cfr Section | 192.619(A)(2) 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 | Yes |
| 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 | The incident was identified by the control room representative and the appropriate notififcations were made. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Malfunction Of Control/relief Equipment |
| Eq Failure Type | Malfunction Of Control/relief Equipment |
| Other Control Relief Ind | Yes |
| Other Control Relief Details | A Failed Operator Resulting From A Blown Fuse In The Actuator Caused The Valve To Performed An Unintended Valve Travel Sequence Causing The Valve To Fail Safe In The Open Position And Release Gas. |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Incorrect Fuse Installed During Manufacturing |
| Preparer Name | C******* K*** |
| Preparer Title | Senior Engineering Technical Analyst I |
| Preparer Email | C************@c********.com |
| Preparer Telephone | 571-788-0509 |
| Authorizer Name | A***** L* W*** |
| Authorizer Title | Gas Regulatory Services Lead |
| Authorizer Telephone | 517-545-8746 |
| Authorizer Email | A**********@c******** |
| Narrative | On saturday, october 10, 2015 at approximately 05:37 consumers energy gas control representative received an alarm at the white pigeon compressor station identifying a potential problem with the emergency shut-down system (esd) in plant #3. The white pigeon compressor station is located in white pigeon, michigan (st. Joseph county) a station mechanic arrived at the location at approximately 06:02 and observed gas blowing from firegate valve #638. The mechanic manually closed the redundant valve, valve #639 shutting down the blowing gas at approximately 06:09. There were no injuries or significant property damage associated with the gas release. Subsequent investigation of the incident determined a failed operator resulting from a blown fuse in the actuator caused the valve to performed an unintended valve travel sequence causing the valve to fail safe in the open position and release gas. Consumers energy is continuing to collaborate with the rotork representative to explore equipment design options to provide an advance trouble indication without inadvertently performing an immediate esd on failure of the fuse. Additional internal measures have also been put in place to minimize the potential for re-occurrence. |
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