ENS 49110
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ENS Event | |
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06:52 Jun 13, 2013 | |
Title | Discovery of Pressure Boundary Leakage |
Event Description | On 6/13/13 at approximately 0252 EDT, during the initial walk down of the drywell of the Hope Creek Unit 1 forced outage, water was observed leaking from a 40% circumferential crack in a weld in the RHR vent line adjacent to the outboard isolation valve (BCV-597). The estimated leakage rate through the crack is less than one gallon per minute. The RHR vent line is one-inch ASME Class 1 piping. Hope Creek Unit 1 is stable in Operational Condition 3, Hot Shutdown.
This report is being made under 10CFR50.72(b)(3)(ii)(A) for a weld or material defect in the primary coolant system which cannot be found acceptable under applicable ASME standards. The NRC Resident Inspector has been notified. The only safety-related equipment out of service at the time event was the 'C' Service Water Pump, which was tagged for scheduled maintenance. No personnel injuries occurred. No radiation releases occurred. The licensee entered a 24 hr. action statement under T.S. 3.4.3.2, Condition A to be in mode 4 by 0252 EDT on 6/14/13. The licensee will be notifying the Lower Alloways Creek township. |
Where | |
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Hope Creek New Jersey (NRC Region 1) | |
Reporting | |
10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded | |
LER: | 05000354/LER-2013-003 |
Time - Person (Reporting Time:+2.82 h0.118 days <br />0.0168 weeks <br />0.00386 months <br />) | |
Opened: | James Priest 09:41 Jun 13, 2013 |
NRC Officer: | Howie Crouch |
Last Updated: | Jun 13, 2013 |
49110 - NRC Website
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Unit 1 | |
---|---|
Reactor critical | Not Critical |
Scram | No |
Before | Hot Shutdown (0 %) |
After | Hot Shutdown (0 %) |
WEEKMONTHYEARENS 571032024-05-03T08:11:0003 May 2024 08:11:00
[Table view]10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Primary Containment Degraded ENS 564942023-04-30T05:00:00030 April 2023 05:00:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident, 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Primary Containment Integrity Degraded ENS 491102013-06-13T06:52:00013 June 2013 06:52:00 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Discovery of Pressure Boundary Leakage ENS 415362005-03-28T15:35:00028 March 2005 15:35:00 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Rcs Through Wall Leakage Identified at Welded Piping Junction 2024-05-03T08:11:00 | |
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