ENS 49351

v t e ENS Event
18:55 Sep 16, 2013
Title	Degraded Condition Caused by Rhr Relief Valve Leakage
Event Description	At 1455 EDT, [on 91/16/13], [Susquehanna] Engineering determined the leakage from the 2B RHR Pump Suction Relief valve caused the Engineered Safety Feature (ESF) Leakage to exceed the 2.5 gpm which was provided to the NRC during the implementation of the Alternate Source Term (AST) submittal. The calculated leakage rate was 7.5 gpm. This event is being reported as a degraded condition pursuant to 10CFR50.72(b)(3)(ii). Unit 2 is currently in Mode 4 (cold shutdown) for a maintenance outage. This leaking RHR pump suction relief valve, previously identified in EN #49344, is being evaluated and repaired. The licensee has notified the NRC Resident Inspector and the state.

ENS 49351 +/-
Where
Susquehanna Pennsylvania (NRC Region 1)
Reporting

10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded
LER:	05000388/LER-2013-004
Time - Person (Reporting Time:+2.27 h0.0946 days <br />0.0135 weeks <br />0.00311 months <br />)
Opened:	Doug Lamarca 21:11 Sep 16, 2013
NRC Officer:	John Shoemaker
Last Updated:	Sep 16, 2013
49351 - NRC Website
v • d • e

v t e Emergency Notification System
Susquehanna with 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded
WEEKMONTHYEAR2023-03-26T20:03:00 [Table view]
[ENS list for Susquehanna]

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