ENS 40277: Difference between revisions

From kanterella

Latest revision as of 21:24, 1 March 2018

v t e ENS Event
04:00 Oct 25, 2003
Title	Degradation of the Reactor Coolant System (Rcs) Pressure Boundary
Event Description	During inspection of the hot leg nozzles on RCP loop #2 in accordance with the Alloy 600 Program Plan during Refuel 12, evidence of leakage was identified on nozzle RC-IPT-0106B. This constitutes degradation of the RCS pressure boundary. Corrective action is being evaluated. RC-IPT-0106B is a pressure transmitter that taps off of reactor coolant system hot leg (loop) # 2 . The location of the Pressure transmitter is found in Waterford Unit 3, FSAR Chapter 5.1, Flow Diagram Reactor Coolant System, Figure 5.1-3. The license said that the picture indicates a small amount of boric acid crystals in the area of the leakage. Licensee did not know if the leakage is from a weld, pin hole leak, etc. The NRC Resident Inspector was notified of this event by the licensee.

ENS 40277 +/-
Where
Waterford Louisiana (NRC Region 4)
Reporting

10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded
LER:	05000382/LER-2003-003
Time - Person (Reporting Time:+3.88 h0.162 days <br />0.0231 weeks <br />0.00531 months <br />)
Opened:	Oscar Pipkins 07:53 Oct 25, 2003
NRC Officer:	John Mackinnon
Last Updated:	Oct 25, 2003
40277 - 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 40277\u003C/a\u003E - \u003Ca href=\"/Waterford\" title=\"Waterford\"\u003EWaterford\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EDegradation of the Reactor Coolant System (Rcs) Pressure Boundary\n\u003C/p\u003E\u003C/div\u003E","title":"ENS 40277 - Waterford\n","link":"","lat":29.993747222222222,"lon":-90.4687111111111,"icon":"/w/images/7/79/Entergy_icon.png"}],"imageoverlays":null}
v • d • e

v t e Emergency Notification System
Waterford with 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded
WEEKMONTHYEAR2023-11-05T16:33:00 [Table view]
[ENS list for Waterford]

@@ Line 16: / Line 16: @@
 | event date = 10/24/2003 23:00 CDT
 | last update date = 10/25/2003
-| title = Degradation Of The Reactor Coolant System (Rcs) Pressure Boundary
+| title = Degradation of the Reactor Coolant System (Rcs) Pressure Boundary
 | event text = During inspection of the hot leg nozzles on RCP loop #2 in accordance with the Alloy 600 Program Plan during Refuel 12, evidence of leakage was identified on nozzle RC-IPT-0106B.  This constitutes degradation of the RCS pressure boundary.  Corrective action is being evaluated.
 RC-IPT-0106B is a pressure transmitter that taps off of reactor coolant system hot leg (loop) # 2 . The location of the Pressure transmitter is found in Waterford Unit 3, FSAR Chapter 5.1, Flow Diagram Reactor Coolant System, Figure 5.1-3. The license said that the picture indicates a small amount of boric acid crystals in the area of the leakage.  Licensee did not know if the leakage is from a weld, pin hole leak, etc.