ENS 51765: Difference between revisions

v t e ENS Event
18:12 Mar 2, 2016
Title	Valid Actuation of Emergency Feedwater
Event Description	On 3/2/2016, [at] 1312 hours0.0152 days <br />0.364 hours <br />0.00217 weeks <br />4.99216e-4 months <br /> EST, while in the process of a plant cooldown, a valid actuation of the emergency feedwater system (EFW) occurred when B steam generator levels were reduced to 20 [percent]. The lowering level was a result of the unanticipated tripping of the start up feed pump on low condensate storage level while it was the feed source to the steam generators. The start up feed pump was restarted and feed flow had been restored when the actuation took place. The EFW flow was secured per procedure and the start up feed pump remains the feed source to the steam generators. This is reportable under 50.72(b)(3)(iv)(A). The licensee notified the NRC Resident Inspector.

ENS 51765 +/-
Where
Seabrook New Hampshire (NRC Region 1)
Reporting

10 CFR 50.72(b)(3)(iv)(A), System Actuation
LER:	05000443/LER-2016-002
Time - Person (Reporting Time:+0.02 h8.333333e-4 days <br />1.190476e-4 weeks <br />2.7396e-5 months <br />)
Opened:	Mike Taylor 18:13 Mar 2, 2016
NRC Officer:	Steven Vitto
Last Updated:	Mar 2, 2016
51765 - NRC Website Loading map... {"minzoom":false,"maxzoom":false,"mappingservice":"leaflet","width":"350px","height":"250px","centre":false,"title":"","label":"","icon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"zoom":6,"defzoom":14,"layers":["OpenStreetMap"],"image layers":[],"overlays":[],"resizable":false,"fullscreen":false,"scrollwheelzoom":true,"cluster":false,"clustermaxzoom":20,"clusterzoomonclick":true,"clustermaxradius":80,"clusterspiderfy":true,"geojson":"","clicktarget":"","imageLayers":[],"locations":[{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca class=\"mw-selflink selflink\"\u003EENS 51765\u003C/a\u003E - \u003Ca href=\"/Seabrook\" title=\"Seabrook\"\u003ESeabrook\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EValid Actuation of Emergency Feedwater\n\u003C/p\u003E\u003C/div\u003E","title":"ENS 51765 - Seabrook\n","link":"","lat":42.89886111111111,"lon":-70.85284722222222,"icon":"/w/images/9/9b/NextEra_Energy_icon.png"}],"imageoverlays":null}
v • d • e

v t e Emergency Notification System
Seabrook with 10 CFR 50.72(b)(3)(iv)(A), System Actuation
WEEKMONTHYEAR2023-07-30T19:26:00 [Table view]
[ENS list for Seabrook]

@@ Line 16: / Line 16: @@
 | event date = 03/02/2016 13:12 EST
 | last update date = 03/02/2016
-| title = Valid Actuation Of Emergency Feedwater
+| title = Valid Actuation of Emergency Feedwater
 | event text = On 3/2/2016, [at] 1312 hours EST, while in the process of a plant cooldown, a valid actuation of the emergency feedwater system (EFW) occurred when B steam generator levels were reduced to 20 [percent]. The lowering level was a result of the unanticipated tripping of the start up feed pump on low condensate storage level while it was the feed source to the steam generators. The start up feed pump was restarted and feed flow had been restored when the actuation took place. The EFW flow was secured per procedure and the start up feed pump remains the feed source to the steam generators.
 This is reportable under 50.72(b)(3)(iv)(A).

Latest revision as of 20:45, 1 March 2018