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EN Revision Text: CONTAINMENT PENETRATION … EN Revision Text: CONTAINMENT PENETRATION DISCOVERED NOT ISOLATED</br>At 2115 CDT on 9/5/2019, an inside containment test connection and inoperable outside containment isolation valve were discovered to be open for a containment air sample penetration. This resulted in the containment penetration not being isolated. The inside containment test connection was closed at 2322 CDT on 9/5/2019. </br> </br>This event is being reported under 10 CFR 50.72(b)(3)(v)(C) and (D) and 10 CFR 50.72(b)(3)(ii)(B).</br> </br>There was no impact to the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified.</br>* * * UPDATE FROM PAUL BURTON TO HOWIE CROUCH AT 1342 EST ON 11/7/19 * * *</br>This event was originally reported on September 6, 2019 under 10 CFR 50.72(b)(3)(v)(C) and (D) and 10 CFR 50.72(b)(3)(ii)(B). Upon completion of the investigation of the event, it was determined that the event had insignificant safety consequences because the containment breach was disconnected from the Reactor Coolant System by a series of closed valves for the duration of the event. Additionally, the lines to the inside containment connection and the outside inoperable containment isolation valve that was found to be open as well as the main line connecting and passing through the penetration were one-inch diameter lines. Analysis determined that containment breaches that are less than a three-inch diameter do not lead to a large radiation release.</br>The event did not place the plant in an unanalyzed condition that significantly degrades plant safety. Therefore, 10 CFR 50.72(b)(3)(ii)(B) did not apply to this event and this notification is to retract reporting under that criterion.</br>The licensee notified the NRC Resident Inspector. Notified R4DO (Drake).Resident Inspector. Notified R4DO (Drake). +
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02:15:00, 6 September 2019 +
EN Revision Text: CONTAINMENT PENETRATION … EN Revision Text: CONTAINMENT PENETRATION DISCOVERED NOT ISOLATED</br>At 2115 CDT on 9/5/2019, an inside containment test connection and inoperable outside containment isolation valve were discovered to be open for a containment air sample penetration. This resulted in the containment penetration not being isolated. The inside containment test connection was closed at 2322 CDT on 9/5/2019. </br> </br>This event is being reported under 10 CFR 50.72(b)(3)(v)(C) and (D) and 10 CFR 50.72(b)(3)(ii)(B).</br> </br>There was no impact to the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified.</br>* * * UPDATE FROM PAUL BURTON TO HOWIE CROUCH AT 1342 EST ON 11/7/19 * * *</br>This event was originally reported on September 6, 2019 under 10 CFR 50.72(b)(3)(v)(C) and (D) and 10 CFR 50.72(b)(3)(ii)(B). Upon completion of the investigation of the event, it was determined that the event had insignificant safety consequences because the containment breach was disconnected from the Reactor Coolant System by a series of closed valves for the duration of the event. Additionally, the lines to the inside containment connection and the outside inoperable containment isolation valve that was found to be open as well as the main line connecting and passing through the penetration were one-inch diameter lines. Analysis determined that containment breaches that are less than a three-inch diameter do not lead to a large radiation release.</br>The event did not place the plant in an unanalyzed condition that significantly degrades plant safety. Therefore, 10 CFR 50.72(b)(3)(ii)(B) did not apply to this event and this notification is to retract reporting under that criterion.</br>The licensee notified the NRC Resident Inspector. Notified R4DO (Drake).Resident Inspector. Notified R4DO (Drake). +
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