GTG incident on 2012-02-08 — KY

Operator
Southern Star Central Gas Pipeline, Inc
Cause
Equipment Failure
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities 0 injuries
Property damage (nominal)
$0
Incident datetime
2012-02-08 07:52
Report number
Location
KY
Narrative
Gas controller received a call from the yuma station operator at approximately 0752 cst on 08 feb 2012 in regards to a relief valve blowing.� the relief valve is located downstream of the high pressure fuel gas regulator 013153r and upstream of the low pressure fuel gas regulator 013152r.� the station operator had no indication of when the relieve valve activated.� based on the yuma mainline pressure profile on scada, indications were there that shows that the relief valve probably was activated approximately at 0505 on 08 feb 2012 and was shut-in at approximately 0812. At 0820 cst the operator called gas control to inform them it the r.V. Had gone off due to a freeze in the regulator run. No alarms were indicated at yuma station of any potential malfunction.� a call was placed to the national response center at 0923 cst on 08 feb 2012.� the nrc created ticket 1002451 in response to this reporting. Yuma station has a heat exchanger that warms the gas before it enters the fuel run. There is also a pilot heater for the regulator installed. Due to the fact that yuma station was off line the heat from both the heat exchanger and the pilot heater were only warming stagnant gas. The ambient temperature at yuma at the time of this incident was approximately 0 degrees f. This allowed the moisture inside the pilot for regulator 13153r to feeze causing the regulator to fail which activated the r.V.
Detailed record list
Report Received Date
2012-03-05 00:00:00
Iyear
2012
Report Number
20120026
Supplemental Number
15885
Report Type
Supplemental Final
Operator Id
Name
Southern Star Central Gas Pipeline, Inc
Operator Street Address
4700 Highway 56; Box 20010
Operator City Name
Owensboro
Operator State Abbreviation
KY
Operator Postal Code
42301
Local Datetime
2012-02-08 05:05:00
Location Latitude
Location Longitude
-102.6862224
Nrc Rpt Num
Nrc Rpt Datetime
2012-02-08 09:23:00
Commodity Released Type
Natural Gas
Unintentional Release
5360
Intentional Release
0
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
No
Shutdown Explain
Regulator Run Isolated And Shut In While Repairs Were Made.
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2012-02-08 07:52:00
On Site Datetime
2012-02-08 07:52:00
On Off Shore
Onshore
Onshore State Abbreviation
Co
Onshore Postal Code
80759
Onshore County Name
Yuma
Designated Location
Survey Station No.
Designated Name
150/223331
Pipe Fac Name
Line W/yuma Station
Segment Name
Yuma Station Fuel Run
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 Regulator/metering Station Equipment And Piping
Item Involved
Regulator/control Valve
Installation Year
1980
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
The Regulator Was Unable To Hold Pressure Because The Pilot Heater Failure.
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
51
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
13453
Est Cost Intentional Release
0
Est Cost Prop Damage
0
Est Cost Emergency
0
Est Cost Other
0
Prpty
13453
Accident Psig
430
Mop Psig
720
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
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
Equipment Failure
Cause Details
Malfunction Of Control/relief Equipment
Eq Failure Type
Malfunction Of Control/relief Equipment
Pressure Regulator Ind
Yes
Eq Additional Other Ind
Yes
Eq Additional Other Details
Failure Of Pilot Heater On The Regulator Caused The Release Of Gas.
Preparer Name
D**** C*****
Preparer Title
Pipeline Compliance Analyst
Preparer Email
D***********@s****.com
Preparer Telephone
270.852.4391
Authorizer Name
D**** S*******
Authorizer Title
Manager Of Pipeline Compliance
Authorizer Telephone
270.852.4424
Authorizer Email
D*************@s****.com
Narrative
Gas controller received a call from the yuma station operator at approximately 0752 cst on 08 feb 2012 in regards to a relief valve blowing.� the relief valve is located downstream of the high pressure fuel gas regulator 013153r and upstream of the low pressure fuel gas regulator 013152r.� the station operator had no indication of when the relieve valve activated.� based on the yuma mainline pressure profile on scada, indications were there that shows that the relief valve probably was activated approximately at 0505 on 08 feb 2012 and was shut-in at approximately 0812. At 0820 cst the operator called gas control to inform them it the r.V. Had gone off due to a freeze in the regulator run. No alarms were indicated at yuma station of any potential malfunction.� a call was placed to the national response center at 0923 cst on 08 feb 2012.� the nrc created ticket 1002451 in response to this reporting. Yuma station has a heat exchanger that warms the gas before it enters the fuel run. There is also a pilot heater for the regulator installed. Due to the fact that yuma station was off line the heat from both the heat exchanger and the pilot heater were only warming stagnant gas. The ambient temperature at yuma at the time of this incident was approximately 0 degrees f. This allowed the moisture inside the pilot for regulator 13153r to feeze causing the regulator to fail which activated the r.V.
Report Received Date 2012-03-05 00:00:00
Iyear 2012
Report Number 20120026
Supplemental Number 15885
Report Type Supplemental Final
Operator Id 31711 PHMSA Enforcement
Name Southern Star Central Gas Pipeline, Inc
Operator Street Address 4700 Highway 56; Box 20010
Operator City Name Owensboro
Operator State Abbreviation KY
Operator Postal Code 42301
Local Datetime 2012-02-08 05:05:00
Location Latitude 40.21859151 Google Maps OpenStreetMap
Location Longitude -102.6862224 Google Maps OpenStreetMap
Nrc Rpt Num 1002451 NRC Report How to search
Nrc Rpt Datetime 2012-02-08 09:23:00
Commodity Released Type Natural Gas
Unintentional Release 5360
Intentional Release 0
Accompanying Liquid 0
Fatality Ind No
Fatal 0
Injury Ind No
Injure 0
Shutdown Due Accident Ind No
Shutdown Explain Regulator Run Isolated And Shut In While Repairs Were Made.
Ignite Ind No
Explode Ind No
Num Pub Evacuated 0
Incident Identified Datetime 2012-02-08 07:52:00
On Site Datetime 2012-02-08 07:52:00
On Off Shore Onshore
Onshore State Abbreviation Co
Onshore Postal Code 80759
Onshore County Name Yuma
Designated Location Survey Station No.
Designated Name 150/223331
Pipe Fac Name Line W/yuma Station
Segment Name Yuma Station Fuel Run
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 Regulator/metering Station Equipment And Piping
Item Involved Regulator/control Valve
Installation Year 1980
Material Involved Carbon Steel
Release Type Other
Release Type Details The Regulator Was Unable To Hold Pressure Because The Pilot Heater Failure.
Class Location Type Class 1 Location
Could Be Hca No
Pir Radius 51
Heat Damage Ind No
Non Heat Damage Ind No
Hca Fatalities Ind No
Est Cost Oper Paid 0
Est Cost Unintentional Release 13453
Est Cost Intentional Release 0
Est Cost Prop Damage 0
Est Cost Emergency 0
Est Cost Other 0
Prpty 13453
Accident Psig 430
Mop Psig 720
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 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 Equipment Failure
Cause Details Malfunction Of Control/relief Equipment
Eq Failure Type Malfunction Of Control/relief Equipment
Pressure Regulator Ind Yes
Eq Additional Other Ind Yes
Eq Additional Other Details Failure Of Pilot Heater On The Regulator Caused The Release Of Gas.
Preparer Name D**** C*****
Preparer Title Pipeline Compliance Analyst
Preparer Email D***********@s****.com
Preparer Telephone 270.852.4391
Authorizer Name D**** S*******
Authorizer Title Manager Of Pipeline Compliance
Authorizer Telephone 270.852.4424
Authorizer Email D*************@s****.com
Narrative Gas controller received a call from the yuma station operator at approximately 0752 cst on 08 feb 2012 in regards to a relief valve blowing.� the relief valve is located downstream of the high pressure fuel gas regulator 013153r and upstream of the low pressure fuel gas regulator 013152r.� the station operator had no indication of when the relieve valve activated.� based on the yuma mainline pressure profile on scada, indications were there that shows that the relief valve probably was activated approximately at 0505 on 08 feb 2012 and was shut-in at approximately 0812. At 0820 cst the operator called gas control to inform them it the r.V. Had gone off due to a freeze in the regulator run. No alarms were indicated at yuma station of any potential malfunction.� a call was placed to the national response center at 0923 cst on 08 feb 2012.� the nrc created ticket 1002451 in response to this reporting. Yuma station has a heat exchanger that warms the gas before it enters the fuel run. There is also a pilot heater for the regulator installed. Due to the fact that yuma station was off line the heat from both the heat exchanger and the pilot heater were only warming stagnant gas. The ambient temperature at yuma at the time of this incident was approximately 0 degrees f. This allowed the moisture inside the pilot for regulator 13153r to feeze causing the regulator to fail which activated the r.V.

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