Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2017-11-29 — TX
Operator
Tennessee Gas Pipeline Company
Cause
Equipment Failure
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$250
Incident datetime
2017-11-29 15:55
Report number
Location
TX
Narrative
All times are eastern standard time; 48-hour update to nrc was 12/01/2017 at 13:55 est; report number 1198362; km pir = 488 feet; public and local fire department reported relief valve activation; intermittent "pops"; relief valve would reseat; located on pipeline; not at compressor station; protecting downstream 730 maop; 8-inch plug valve beneath relief valve was used to isolate relief valve; relief valve was inspected and tested then returned to service;
Detailed record list
Report Received Date
2017-12-27 00:00:00
Iyear
2017
Report Number
20170125
Supplemental Number
17559
Report Type
Supplemental Final
Operator Id
19160
Name
Tennessee Gas Pipeline Company
Operator Street Address
1001 Louisiana St
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2017-11-29 15:55:00
Location Latitude
42.386006
Location Longitude
-73.353948
Nrc Rpt Num
1198362
Nrc Rpt Datetime
2017-11-29 16:36:00
Commodity Released Type
Natural Gas
Unintentional Release
10960
Intentional Release
0
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
No
Shutdown Explain
No, Relief Valve Was Isolated For Investigation And Calibration
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2017-11-29 15:55:00
On Site Datetime
2017-11-29 16:00:00
On Off Shore
Onshore
Onshore State Abbreviation
Ma
Onshore Postal Code
01201
Onshore City Name
Not Within A Municipality
Onshore County Name
Berkshire
Designated Location
Survey Station No.
Designated Name
198+66
Pipe Fac Name
Tgp Line 256-1
Segment Name
254-1 To 261-1 Segment
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance
Crossing
No
Pipe Facility Type
Interstate
System Part Involved
Onshore Pipeline, Including Valve Sites
Item Involved
Valve
Valve Type
Relief Valve
Installation Year
1986
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
Relief Valve Activation
Class Location Type
Class 2 Location
Could Be Hca
No
Pir Radius
448
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
31565
Est Cost Intentional Release
0
Est Cost Prop Damage
250
Est Cost Emergency
250
Est Cost Other
0
Prpty
32065
Accident Psig
745
Mop Psig
730
Mop Cfr Section
192.619(C)
Accident Pressure
Pressure Exceeded Maop, But Did Not Exceed The Applicable Allowance In 192.201
Pressure Restriction Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Manual
Length Segment Isolated
2
Internal Inspection Ind
Yes
Operation Complications 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
Notification From Public
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
Relief valve popped intermittently and reseated each event
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
Additional Valve Ind
Yes
Preparer Name
W* M***** M*****
Preparer Title
Specialist - Pipeline Technical
Preparer Email
M************@k***********.com
Preparer Telephone
2053253863
Preparer Fax
2053253592
Authorizer Name
R*** G*****
Authorizer Title
Director Compliance Codes And Standards
Authorizer Telephone
7134205433
Authorizer Email
R**********@k***********.com
Narrative
All times are eastern standard time; 48-hour update to nrc was 12/01/2017 at 13:55 est; report number 1198362; km pir = 488 feet; public and local fire department reported relief valve activation; intermittent "pops"; relief valve would reseat; located on pipeline; not at compressor station; protecting downstream 730 maop; 8-inch plug valve beneath relief valve was used to isolate relief valve; relief valve was inspected and tested then returned to service;
| Report Received Date | 2017-12-27 00:00:00 |
|---|---|
| Iyear | 2017 |
| Report Number | 20170125 |
| Supplemental Number | 17559 |
| Report Type | Supplemental Final |
| Operator Id | 19160 PHMSA Enforcement |
| Name | Tennessee Gas Pipeline Company |
| Operator Street Address | 1001 Louisiana St |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2017-11-29 15:55:00 |
| Location Latitude | 42.386006 Google Maps OpenStreetMap |
| Location Longitude | -73.353948 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1198362 NRC Report How to search |
| Nrc Rpt Datetime | 2017-11-29 16:36:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 10960 |
| Intentional Release | 0 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | No, Relief Valve Was Isolated For Investigation And Calibration |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2017-11-29 15:55:00 |
| On Site Datetime | 2017-11-29 16:00:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Ma |
| Onshore Postal Code | 01201 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Berkshire |
| Designated Location | Survey Station No. |
| Designated Name | 198+66 |
| Pipe Fac Name | Tgp Line 256-1 |
| Segment Name | 254-1 To 261-1 Segment |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance |
| Crossing | No |
| Pipe Facility Type | Interstate |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| Item Involved | Valve |
| Valve Type | Relief Valve |
| Installation Year | 1986 |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | Relief Valve Activation |
| Class Location Type | Class 2 Location |
| Could Be Hca | No |
| Pir Radius | 448 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 31565 |
| Est Cost Intentional Release | 0 |
| Est Cost Prop Damage | 250 |
| Est Cost Emergency | 250 |
| Est Cost Other | 0 |
| Prpty | 32065 |
| Accident Psig | 745 |
| Mop Psig | 730 |
| Mop Cfr Section | 192.619(C) View CFR 49 §192 |
| Accident Pressure | Pressure Exceeded Maop, But Did Not Exceed The Applicable Allowance In 192.201 |
| Pressure Restriction Ind | No |
| Upstream Valve Type Ind | Manual |
| Downstream Valve Type Ind | Manual |
| Length Segment Isolated | 2 |
| Internal Inspection Ind | Yes |
| Operation Complications 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 | Notification From Public |
| 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 | Relief valve popped intermittently and reseated each event |
| 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 |
| Additional Valve Ind | Yes |
| Preparer Name | W* M***** M***** |
| Preparer Title | Specialist - Pipeline Technical |
| Preparer Email | M************@k***********.com |
| Preparer Telephone | 2053253863 |
| Preparer Fax | 2053253592 |
| Authorizer Name | R*** G***** |
| Authorizer Title | Director Compliance Codes And Standards |
| Authorizer Telephone | 7134205433 |
| Authorizer Email | R**********@k***********.com |
| Narrative | All times are eastern standard time; 48-hour update to nrc was 12/01/2017 at 13:55 est; report number 1198362; km pir = 488 feet; public and local fire department reported relief valve activation; intermittent "pops"; relief valve would reseat; located on pipeline; not at compressor station; protecting downstream 730 maop; 8-inch plug valve beneath relief valve was used to isolate relief valve; relief valve was inspected and tested then returned to service; |
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