Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2016-05-27 — TX
Operator
Sunoco Pipeline L.p.
Cause
Equipment Failure
Commodity
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$50
Incident datetime
2016-05-27 13:15
Report number
Location
TX
Narrative
On friday, 5/27/2016 at 13:04, a high-high lel alarm condition triggered a facility lockout at twin oaks meter station and pieline shut down. Event notification was sent to supervision and field personnel were dispatched to investigate. Leak was discovered at the receiving pig trap door. Response included isolation of the pig trap and flaring of the remaining product contained in the pig trap. When purged and made safe to open, the pig trap door was assessed and it was determined that the o-ring door seal had failed which caused the release. A new o-ring was installed, leak tested and the pipeline was returned to normal operation.
Detailed record list
Report Received Date
2016-06-22 00:00:00
Iyear
2016
Report Number
20160192
Supplemental Number
21777
Report Type
Supplemental Final
Operator Id
18718
Name
Sunoco Pipeline L.p.
Operator Street Address
1300 Main Street
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2016-05-27 13:04:00
Location Latitude
39.844773
Location Longitude
-75.418525
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Lpg (Liquefied Petroleum Gas) / Ngl (Natural Gas Liquid)
Unintentional Release Bbls
9.1
Intentional Release Bbls
1
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Cpm Leak Detection System Or Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Calculations)
Incident Identified Datetime
2016-05-27 13:15:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2016-05-27 13:04:00
Restart Datetime
2016-05-27 17:26:00
On Site Datetime
2016-05-27 13:55:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Tw14-Twin Oaks Meter Station
Segment Name
11190-8" Twin Oaks To Montello
Onshore State Abbreviation
Pa
Onshore Postal Code
19014
Onshore City Name
Aston
Onshore County Name
Delaware
Designated Location
Milepost/valve Station
Designated Name
Twin Oaks
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Scraper/pig Trap
Installation Year
2014
Material Involved
Material Other Than Carbon Steel
Material Details
Viton O-Ring
Release Type
Leak
Leak Type
Seal Or Packing
Wildlife Impact Ind
No
Soil Contamination
No
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
No
Could Be Hca
Yes
Commodity Reached Hca
Yes
High Pop Ind
Yes
High Pop Yes No
Yes
Usa Ecological Ind
Yes
Usa Ecological Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
123
Est Cost Prop Damage
50
Est Cost Emergency
7570
Est Cost Environmental
0
Est Cost Other
0
Prpty
7743
Accident Psig
1102
Mop Psig
1480
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Pipeline Function
> 20% Smys Regulated Transmission
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
Yes
Scada Conf Ind
Yes
Cpm In Place Ind
Yes
Cpm Operating Ind
Yes
Cpm Functional Ind
Yes
Cpm Detection Ind
No
Cpm Conf Ind
No
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
A review of the accident determined that there were no control room actions that contributed to the event.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Non-Threaded Connection Failure
Eq Failure Type
Non-Threaded Connection Failure
Other Non Threaded Ind
O-Ring
Eq Additional Other Ind
Yes
Eq Additional Other Details
O-Ring Failed.
Preparer Name
T*** G* N*******
Preparer Title
Dot Compliance Manager
Preparer Email
T*********@s**************.com
Preparer Telephone
281-637-6576
Preparer Fax
877-917-0448
Prepared Date
2016-10-20 00:00:00
Authorizer Name
T*** G* N*******
Authorizer Telephone
281-637-6576
Authorizer Title
Dot Compliance Manager
Authorizer Email
T*********@s*************.com
Narrative
On friday, 5/27/2016 at 13:04, a high-high lel alarm condition triggered a facility lockout at twin oaks meter station and pieline shut down. Event notification was sent to supervision and field personnel were dispatched to investigate. Leak was discovered at the receiving pig trap door. Response included isolation of the pig trap and flaring of the remaining product contained in the pig trap. When purged and made safe to open, the pig trap door was assessed and it was determined that the o-ring door seal had failed which caused the release. A new o-ring was installed, leak tested and the pipeline was returned to normal operation.
| Report Received Date | 2016-06-22 00:00:00 |
|---|---|
| Iyear | 2016 |
| Report Number | 20160192 |
| Supplemental Number | 21777 |
| Report Type | Supplemental Final |
| Operator Id | 18718 PHMSA Enforcement |
| Name | Sunoco Pipeline L.p. |
| Operator Street Address | 1300 Main Street |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2016-05-27 13:04:00 |
| Location Latitude | 39.844773 Google Maps OpenStreetMap |
| Location Longitude | -75.418525 Google Maps OpenStreetMap |
| Commodity Released Type | Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions |
| Commodity Subtype | Lpg (Liquefied Petroleum Gas) / Ngl (Natural Gas Liquid) |
| Unintentional Release Bbls | 9.1 |
| Intentional Release Bbls | 1 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Cpm Leak Detection System Or Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Calculations) |
| Incident Identified Datetime | 2016-05-27 13:15:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2016-05-27 13:04:00 |
| Restart Datetime | 2016-05-27 17:26:00 |
| On Site Datetime | 2016-05-27 13:55:00 |
| Nrc Rpt Num | Nrc Notification Not Required NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Tw14-Twin Oaks Meter Station |
| Segment Name | 11190-8" Twin Oaks To Montello |
| Onshore State Abbreviation | Pa |
| Onshore Postal Code | 19014 |
| Onshore City Name | Aston |
| Onshore County Name | Delaware |
| Designated Location | Milepost/valve Station |
| Designated Name | Twin Oaks |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Scraper/pig Trap |
| Installation Year | 2014 |
| Material Involved | Material Other Than Carbon Steel |
| Material Details | Viton O-Ring |
| Release Type | Leak |
| Leak Type | Seal Or Packing |
| Wildlife Impact Ind | No |
| Soil Contamination | No |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | No |
| Could Be Hca | Yes |
| Commodity Reached Hca | Yes |
| High Pop Ind | Yes |
| High Pop Yes No | Yes |
| Usa Ecological Ind | Yes |
| Usa Ecological Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 123 |
| Est Cost Prop Damage | 50 |
| Est Cost Emergency | 7570 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 7743 |
| Accident Psig | 1102 |
| Mop Psig | 1480 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Pipeline Function | > 20% Smys Regulated Transmission |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | Yes |
| Scada Conf Ind | Yes |
| Cpm In Place Ind | Yes |
| Cpm Operating Ind | Yes |
| Cpm Functional Ind | Yes |
| Cpm Detection Ind | No |
| Cpm Conf Ind | No |
| 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 | A review of the accident determined that there were no control room actions that contributed to the event. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Non-Threaded Connection Failure |
| Eq Failure Type | Non-Threaded Connection Failure |
| Other Non Threaded Ind | O-Ring |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | O-Ring Failed. |
| Preparer Name | T*** G* N******* |
| Preparer Title | Dot Compliance Manager |
| Preparer Email | T*********@s**************.com |
| Preparer Telephone | 281-637-6576 |
| Preparer Fax | 877-917-0448 |
| Prepared Date | 2016-10-20 00:00:00 |
| Authorizer Name | T*** G* N******* |
| Authorizer Telephone | 281-637-6576 |
| Authorizer Title | Dot Compliance Manager |
| Authorizer Email | T*********@s*************.com |
| Narrative | On friday, 5/27/2016 at 13:04, a high-high lel alarm condition triggered a facility lockout at twin oaks meter station and pieline shut down. Event notification was sent to supervision and field personnel were dispatched to investigate. Leak was discovered at the receiving pig trap door. Response included isolation of the pig trap and flaring of the remaining product contained in the pig trap. When purged and made safe to open, the pig trap door was assessed and it was determined that the o-ring door seal had failed which caused the release. A new o-ring was installed, leak tested and the pipeline was returned to normal operation. |
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