Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2016-02-14 — NY
Operator
Keyspan Energy Delivery - Ny City
Cause
Incorrect Operation
Commodity
—
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$5,000
Incident datetime
2016-02-14 03:06
Report number
Location
NY, KINGS
Narrative
Incident occurred by ignition of a customer range in apartment building at 40 clinton street, brooklyn, ny. The root cause was overpressurization of the gas service regulator supplying cooking loads to 152 apartments, due to improper installation of the vent lines at the time of the initial installation. This was a parallel gas service regulator installation. Part of the vent lines were installed below grade, passing through two concrete barriers: one at foundation wall, and one at sidewalk. These vent lines were both unsleeved, and corroded over time. Water from the surrounding soil infiltrated the vent line and collected on top of the primary regulator diaphragm and froze. In addition, the vent line was partially frozen and blocked. The secondary regulator served to vent excess gas due to elevated pressure. A service person responding to a call at this location found the coupling on the secondary vent line disconnected, and out of an abundance of caution, "valved out" the secondary regulator to stop the flow of blowing gas. This prevented the internal relief of the secondary gas service regulator to vent the excess pressure from the failed regulator; therefore both relief valves were rendered ineffective, allowing downstream pressure to build up to levels beyond recommended limits for the customers' equipment and a fire resulted in one of the apartments. Cooking loads for all 152 apartments remain turned off until the assigned plumber obtains the permit from the department of buildings. In part g above, the task which led to the incident was not a covered task for our oq program at the time of the service and equipment installation; however, it is a covered task at this point in time. Last service was restored on 9/1/2016
Detailed record list
Occurred At
2016-02-14 03:06:00
Year
2016
Report Received Date
2016-03-14 00:00:00
Iyear
2016.0
Report Number
20160026.0
Supplemental Number
16409.0
Report Type
Supplemental Final
Operator Id
1800
Name
Keyspan Energy Delivery - Ny City
Operator Street Address
2 Hanson Place
Operator City Name
Brooklyn
Operator State Abbreviation
NY
Operator Postal Code
11217
Local Datetime
2016-02-14 00:00:00
Location Street Address
40 Clinton Street
Location City Name
Brooklyn
Location County Name
Kings
Location State Abbreviation
NY
Location Postal Code
11201
Location Latitude
40.69559
Location Longitude
-73.992042
Nrc Rpt Datetime
2016-02-14 11:10:00
Nrc Rpt Num
1140432
Unintentional Release
1.1
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
Yes
Explode Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2016-02-14 03:06:00
On Site Datetime
2016-02-14 03:28:00
Federal
No
Location Type
Private Property
Incident Area Type
Aboveground
Incident Area Subtype
Inside A Building
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Inside Meter/regulator Set
Installation Year
1996.0
Material Involved
Other
Material Details
Presumed - Defective Regulator
Release Type
Other
Release Type Details
A Call Was Received From Fdny To Report A Fire At An Apartment At 40 Clinton St Customer Range Was The Source Of The Fire And It Is Suspected That Range Was Overpressurized Due To A Defective Gas Service Regulator Supplying 152 Apartment Units.
Class Location Type
Class 4 Location
Est Cost Oper Paid
50000.0
Est Cost Prop Damage
5000.0
Est Cost Emergency
20000.0
Est Cost Other
0.0
Est Cost Other Details
All Costs Are Estimated At This Point In Time
Est Cost Unintentional Release
0.0
Prpty
75000.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
152.0
Accident Psig
10.5
Normal Psig
10.5
Mop Psig
15.0
Accident Pressure
Pressure Did Not Exceed Maop
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 Emergency Responder
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 not the result of any operation that the control room can detect under present operating conditions and alarms
Employee Drug Test Ind
Yes
Num Employees Tested
1
Num Employees Failed
0
Contractor Drug Test Ind
No
Cause
Incorrect Operation
Cause Details
Equipment Not Installed Properly
Operation Type
Equipment Not Installed Properly
Related Failure Follow Ind
Yes
Category Type
Construction
Operator Qualification Ind
No
Preparer Name
C****** B*****
Preparer Title
Principal Program Manager Federal Programs
Preparer Email
C*************@n***********.com
Preparer Telephone
6317703549
Authorizer Name
C****** B*****
Authorizer Title
Principal Program Manager Federal Program
Authorizer Telephone
6317703549
Authorizer Email
C*************@n***********.com
Narrative
Incident occurred by ignition of a customer range in apartment building at 40 clinton street, brooklyn, ny. The root cause was overpressurization of the gas service regulator supplying cooking loads to 152 apartments, due to improper installation of the vent lines at the time of the initial installation. This was a parallel gas service regulator installation. Part of the vent lines were installed below grade, passing through two concrete barriers: one at foundation wall, and one at sidewalk. These vent lines were both unsleeved, and corroded over time. Water from the surrounding soil infiltrated the vent line and collected on top of the primary regulator diaphragm and froze. In addition, the vent line was partially frozen and blocked. The secondary regulator served to vent excess gas due to elevated pressure. A service person responding to a call at this location found the coupling on the secondary vent line disconnected, and out of an abundance of caution, "valved out" the secondary regulator to stop the flow of blowing gas. This prevented the internal relief of the secondary gas service regulator to vent the excess pressure from the failed regulator; therefore both relief valves were rendered ineffective, allowing downstream pressure to build up to levels beyond recommended limits for the customers' equipment and a fire resulted in one of the apartments. Cooking loads for all 152 apartments remain turned off until the assigned plumber obtains the permit from the department of buildings. In part g above, the task which led to the incident was not a covered task for our oq program at the time of the service and equipment installation; however, it is a covered task at this point in time. Last service was restored on 9/1/2016
| Occurred At | 2016-02-14 03:06:00 |
|---|---|
| Year | 2016 |
| Report Received Date | 2016-03-14 00:00:00 |
| Iyear | 2016.0 |
| Report Number | 20160026.0 |
| Supplemental Number | 16409.0 |
| Report Type | Supplemental Final |
| Operator Id | 1800 PHMSA Enforcement |
| Name | Keyspan Energy Delivery - Ny City |
| Operator Street Address | 2 Hanson Place |
| Operator City Name | Brooklyn |
| Operator State Abbreviation | NY |
| Operator Postal Code | 11217 |
| Local Datetime | 2016-02-14 00:00:00 |
| Location Street Address | 40 Clinton Street |
| Location City Name | Brooklyn |
| Location County Name | Kings |
| Location State Abbreviation | NY |
| Location Postal Code | 11201 |
| Location Latitude | 40.69559 Google Maps OpenStreetMap |
| Location Longitude | -73.992042 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2016-02-14 11:10:00 |
| Nrc Rpt Num | 1140432 NRC Report How to search |
| Unintentional Release | 1.1 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | Yes |
| Explode Ind | No |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2016-02-14 03:06:00 |
| On Site Datetime | 2016-02-14 03:28:00 |
| Federal | No |
| Location Type | Private Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Inside A Building |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Inside Meter/regulator Set |
| Installation Year | 1996.0 |
| Material Involved | Other |
| Material Details | Presumed - Defective Regulator |
| Release Type | Other |
| Release Type Details | A Call Was Received From Fdny To Report A Fire At An Apartment At 40 Clinton St Customer Range Was The Source Of The Fire And It Is Suspected That Range Was Overpressurized Due To A Defective Gas Service Regulator Supplying 152 Apartment Units. |
| Class Location Type | Class 4 Location |
| Est Cost Oper Paid | 50000.0 |
| Est Cost Prop Damage | 5000.0 |
| Est Cost Emergency | 20000.0 |
| Est Cost Other | 0.0 |
| Est Cost Other Details | All Costs Are Estimated At This Point In Time |
| Est Cost Unintentional Release | 0.0 |
| Prpty | 75000.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 152.0 |
| Accident Psig | 10.5 |
| Normal Psig | 10.5 |
| Mop Psig | 15.0 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| 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 Emergency Responder |
| 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 not the result of any operation that the control room can detect under present operating conditions and alarms |
| Employee Drug Test Ind | Yes |
| Num Employees Tested | 1 |
| Num Employees Failed | 0 |
| Contractor Drug Test Ind | No |
| Cause | Incorrect Operation |
| Cause Details | Equipment Not Installed Properly |
| Operation Type | Equipment Not Installed Properly |
| Related Failure Follow Ind | Yes |
| Category Type | Construction |
| Operator Qualification Ind | No |
| Preparer Name | C****** B***** |
| Preparer Title | Principal Program Manager Federal Programs |
| Preparer Email | C*************@n***********.com |
| Preparer Telephone | 6317703549 |
| Authorizer Name | C****** B***** |
| Authorizer Title | Principal Program Manager Federal Program |
| Authorizer Telephone | 6317703549 |
| Authorizer Email | C*************@n***********.com |
| Narrative | Incident occurred by ignition of a customer range in apartment building at 40 clinton street, brooklyn, ny. The root cause was overpressurization of the gas service regulator supplying cooking loads to 152 apartments, due to improper installation of the vent lines at the time of the initial installation. This was a parallel gas service regulator installation. Part of the vent lines were installed below grade, passing through two concrete barriers: one at foundation wall, and one at sidewalk. These vent lines were both unsleeved, and corroded over time. Water from the surrounding soil infiltrated the vent line and collected on top of the primary regulator diaphragm and froze. In addition, the vent line was partially frozen and blocked. The secondary regulator served to vent excess gas due to elevated pressure. A service person responding to a call at this location found the coupling on the secondary vent line disconnected, and out of an abundance of caution, "valved out" the secondary regulator to stop the flow of blowing gas. This prevented the internal relief of the secondary gas service regulator to vent the excess pressure from the failed regulator; therefore both relief valves were rendered ineffective, allowing downstream pressure to build up to levels beyond recommended limits for the customers' equipment and a fire resulted in one of the apartments. Cooking loads for all 152 apartments remain turned off until the assigned plumber obtains the permit from the department of buildings. In part g above, the task which led to the incident was not a covered task for our oq program at the time of the service and equipment installation; however, it is a covered task at this point in time. Last service was restored on 9/1/2016 |
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