Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2020-11-29 — FL
Operator
Gulfstream Management & Operating Services,llc
Cause
Equipment Failure
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$600
Incident datetime
2020-11-29 01:00
Report number
Location
FL
Narrative
On 11/29/2020 at the gulfstream tiger bay m&r station, there was a combined release of 4.2 mmcf of gas (2.1 mmcf from williams and 2.1 mmcf from the customer). Williams determined the release was due to the failure of a mooney flexible element regulator coupled with a relief valve that failed to reset once the pressure dropped below the set point. The customer came offline, at which time, the mooney regulator failed to lockup due to internal damage to the flexible element (wear and tear: seeing flexible element life has shortened from 6 months to 2 months). The relief valve began to vent but did not reset once the pressure decreased below the set point. The relief valve continued to vent until the responding technician arrived and secured the facility. When the relief was tore down to be rebuilt and put back in service, a metal pin was found to be wedged in the relief and was not allowing it to reset. The valve manufacturer was contacted to ask if it was an alignment pin left in there by mistake but they have indicated they do not use anything like that during manufacturing. It is unknown as to where the pin may have come from.
Detailed record list
Report Received Date
2020-12-28 00:00:00
Iyear
2020
Report Number
20200133
Supplemental Number
34676
Report Type
Supplemental Final
Operator Id
31565
Name
Gulfstream Management & Operating Services,llc
Operator Street Address
1905 Intermodal Circle, Suite 310
Operator City Name
Palmetto
Operator State Abbreviation
FL
Operator Postal Code
34221
Local Datetime
2020-11-29 02:15:00
Time Zone
Eastern
Daylight Savings Ind
No
Location Latitude
27.748333
Location Longitude
-81.85
Nrc Rpt Num
1293196
Nrc Rpt Datetime
2020-11-29 16:15:00
Additional Nrc Report Numbers
1293256
Commodity Released Type
Natural Gas
Unintentional Release
4200
Intentional Release
0
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Status When Identified
Normal Operation, Includes Pauses During Maintenance
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2020-11-29 12:00:00
Restart Datetime
2020-12-10 16:15:00
Communication State Fed Ind
No
Ignite Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2020-11-29 01:00:00
On Site Datetime
2020-11-29 02:15:00
On Off Shore
Onshore
Onshore State Abbreviation
Fl
Onshore Postal Code
33841
Onshore City Name
Fort Meade
Onshore County Name
Polk
Designated Location
Survey Station No.
Designated Name
6+65
Pipe Fac Name
Station 415
Segment Name
Tiger Bay M&r
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
Valve
Valve Type
Relief Valve
Installation Year
2020
Manufactured Year
2020
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
Relief Valve Actuation
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
338
Heat Damage Ind
No
Non Heat Damage Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
10416
Est Cost Intentional Release
0
Est Cost Prop Damage
600
Est Cost Emergency
0
Est Cost Other
0
Gas Cost In Mcf
2.48
Prpty
11016
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Wildlife Impact Ind
No
Accident Psig
465
Gas Flow In Pipe In Mcf
30
Mop Psig
1480
Mop Cfr Section
192.619(A)(2)
Maop Established Date
2002-03-26 00:00:00
Maop Reversal Flow Ind
No
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Gas Required Odorized 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
Other
Accident Details
Notification By Customer
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
Leak was due to valve not resetting (equipment failure).
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
Relief Valve Ind
Yes
Pressure Regulator Ind
Yes
Additional Erosion Wear Ind
Yes
Eq Additional Other Ind
Yes
Eq Additional Other Details
Metal Pin Was Found Wedged In The Relief
Preparer Name
S******** R***
Preparer Title
Pipeline Safety Engineer
Preparer Email
S*************@w*******.com
Preparer Telephone
713-215-4163
Authorizer Name
T**** G****
Authorizer Title
Pipeline Safety Manager
Authorizer Telephone
713-215-2535
Authorizer Email
T**********@w*******.com
Narrative
On 11/29/2020 at the gulfstream tiger bay m&r station, there was a combined release of 4.2 mmcf of gas (2.1 mmcf from williams and 2.1 mmcf from the customer). Williams determined the release was due to the failure of a mooney flexible element regulator coupled with a relief valve that failed to reset once the pressure dropped below the set point. The customer came offline, at which time, the mooney regulator failed to lockup due to internal damage to the flexible element (wear and tear: seeing flexible element life has shortened from 6 months to 2 months). The relief valve began to vent but did not reset once the pressure decreased below the set point. The relief valve continued to vent until the responding technician arrived and secured the facility. When the relief was tore down to be rebuilt and put back in service, a metal pin was found to be wedged in the relief and was not allowing it to reset. The valve manufacturer was contacted to ask if it was an alignment pin left in there by mistake but they have indicated they do not use anything like that during manufacturing. It is unknown as to where the pin may have come from.
| Report Received Date | 2020-12-28 00:00:00 |
|---|---|
| Iyear | 2020 |
| Report Number | 20200133 |
| Supplemental Number | 34676 |
| Report Type | Supplemental Final |
| Operator Id | 31565 PHMSA Enforcement |
| Name | Gulfstream Management & Operating Services,llc |
| Operator Street Address | 1905 Intermodal Circle, Suite 310 |
| Operator City Name | Palmetto |
| Operator State Abbreviation | FL |
| Operator Postal Code | 34221 |
| Local Datetime | 2020-11-29 02:15:00 |
| Time Zone | Eastern |
| Daylight Savings Ind | No |
| Location Latitude | 27.748333 Google Maps OpenStreetMap |
| Location Longitude | -81.85 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1293196 NRC Report How to search |
| Nrc Rpt Datetime | 2020-11-29 16:15:00 |
| Additional Nrc Report Numbers | 1293256 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 4200 |
| Intentional Release | 0 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Status When Identified | Normal Operation, Includes Pauses During Maintenance |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2020-11-29 12:00:00 |
| Restart Datetime | 2020-12-10 16:15:00 |
| Communication State Fed Ind | No |
| Ignite Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2020-11-29 01:00:00 |
| On Site Datetime | 2020-11-29 02:15:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Fl |
| Onshore Postal Code | 33841 |
| Onshore City Name | Fort Meade |
| Onshore County Name | Polk |
| Designated Location | Survey Station No. |
| Designated Name | 6+65 |
| Pipe Fac Name | Station 415 |
| Segment Name | Tiger Bay M&r |
| 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 | Valve |
| Valve Type | Relief Valve |
| Installation Year | 2020 |
| Manufactured Year | 2020 |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | Relief Valve Actuation |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 338 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 10416 |
| Est Cost Intentional Release | 0 |
| Est Cost Prop Damage | 600 |
| Est Cost Emergency | 0 |
| Est Cost Other | 0 |
| Gas Cost In Mcf | 2.48 |
| Prpty | 11016 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Wildlife Impact Ind | No |
| Accident Psig | 465 |
| Gas Flow In Pipe In Mcf | 30 |
| Mop Psig | 1480 |
| Mop Cfr Section | 192.619(A)(2) View CFR 49 §192 |
| Maop Established Date | 2002-03-26 00:00:00 |
| Maop Reversal Flow Ind | No |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Pressure Restriction Ind | No |
| Gas Required Odorized 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 | Other |
| Accident Details | Notification By Customer |
| 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 | Leak was due to valve not resetting (equipment failure). |
| 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 |
| Relief Valve Ind | Yes |
| Pressure Regulator Ind | Yes |
| Additional Erosion Wear Ind | Yes |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Metal Pin Was Found Wedged In The Relief |
| Preparer Name | S******** R*** |
| Preparer Title | Pipeline Safety Engineer |
| Preparer Email | S*************@w*******.com |
| Preparer Telephone | 713-215-4163 |
| Authorizer Name | T**** G**** |
| Authorizer Title | Pipeline Safety Manager |
| Authorizer Telephone | 713-215-2535 |
| Authorizer Email | T**********@w*******.com |
| Narrative | On 11/29/2020 at the gulfstream tiger bay m&r station, there was a combined release of 4.2 mmcf of gas (2.1 mmcf from williams and 2.1 mmcf from the customer). Williams determined the release was due to the failure of a mooney flexible element regulator coupled with a relief valve that failed to reset once the pressure dropped below the set point. The customer came offline, at which time, the mooney regulator failed to lockup due to internal damage to the flexible element (wear and tear: seeing flexible element life has shortened from 6 months to 2 months). The relief valve began to vent but did not reset once the pressure decreased below the set point. The relief valve continued to vent until the responding technician arrived and secured the facility. When the relief was tore down to be rebuilt and put back in service, a metal pin was found to be wedged in the relief and was not allowing it to reset. The valve manufacturer was contacted to ask if it was an alignment pin left in there by mistake but they have indicated they do not use anything like that during manufacturing. It is unknown as to where the pin may have come from. |
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