ENS 52722: Difference between revisions

v t e ENS Event
13:28 May 2, 2017
Title	Failed Ultrasonic Testing of Weld
Event Description	On May 2, 2017, during planned inspections, an ultrasonic examination performed on weld PCS-4-PRS-1P1-1, revealed an axial indication in the pressurizer nozzle to safe end area of the weld. This indication does not meet applicable acceptance criteria under ASME,Section XI. The plant was in cold shutdown at 0% power for a planned refueling outage at the time of discovery. The condition will be resolved prior to plant startup. This condition has no impact to the health and safety of the public. The licensee notified the NRC Senior Resident Inspector. This report is being made in accordance with 10 CFR 50.72(b)(3)(ii)(A), since an indication was found that did not meet acceptance criteria referenced in ASME Code,Section XI. * * RETRACTION ON 5/9/17 AT 1303 EDT FROM BARBARA DOTSON TO BETHANY CECERE * * * Additional evaluations of the recorded indication concluded that the indication was attributed to an erroneous ultrasonic response. This was the result of a combined effect of compromised surface contact at the area of the recorded indication and associated examination scan speed. The contact issue is attributed to the specific tooling configuration required for this exam. The combination of these factors resulted in the introduction of an erroneous reflector in the area of interest that had characteristics of a relevant indication. The vendor repeated the entire examination for axial flaws and there were no service induced indications recorded. A review of the newly acquired data by site, vendor and EPRI personnel confirmed that no service induced flaws are present. The licensee has notified the NRC Resident Inspector. Notified the R3DO (Hills).

ENS 52722 +/- *RETRACTED*
Where
Palisades Michigan (NRC Region 3)
Reporting

10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded
Time - Person (Reporting Time:+1.97 h0.0821 days <br />0.0117 weeks <br />0.0027 months <br />)
Opened:	Barbara Dotson 15:26 May 2, 2017
NRC Officer:	Dong Park
Last Updated:	May 9, 2017
52722 - 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 52722\u003C/a\u003E - \u003Ca href=\"/Palisades\" title=\"Palisades\"\u003EPalisades\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EFailed Ultrasonic Testing of Weld\n\u003C/p\u003E\u003C/div\u003E","title":"ENS 52722 - Palisades\n","link":"","lat":42.32339722222222,"lon":-86.31451666666666,"icon":"/w/images/7/79/Entergy_icon.png"}],"imageoverlays":null}
v • d • e

v t e Emergency Notification System
Palisades with 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded
WEEKMONTHYEAR		Degraded Condition 2020-09-11T23:30:00 [Table view]
[ENS list for Palisades]

@@ Line 17: / Line 17: @@
 | event date = 05/02/2017 09:28 EDT
 | last update date = 05/09/2017
-| title = Failed Ultrasonic Testing Of Weld
+| title = Failed Ultrasonic Testing of Weld
 | event text = On May 2, 2017, during planned inspections, an ultrasonic examination performed on weld PCS-4-PRS-1P1-1, revealed an axial indication in the pressurizer nozzle to safe end area of the weld. This indication does not meet applicable acceptance criteria under ASME, Section XI.
 The plant was in cold shutdown at 0% power for a planned refueling outage at the time of discovery. The condition will be resolved prior to plant startup.

v t e Unit 1
CE
Reactor critical	Not Critical
Scram	No
Before	Refueling (0 %)
After	Refueling (0 %)

ENS 52722: Difference between revisions

Latest revision as of 21:42, 1 March 2018

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ENS 52722: Difference between revisions

Latest revision as of 21:42, 1 March 2018

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