ENS 42465

v t e ENS Event
05:39 Apr 1, 2006
Title	Excessive Check Valve Leakage at a Containment Penetration
Event Description	At 0039 hours4.513889e-4 days <br />0.0108 hours <br />6.448413e-5 weeks <br />1.48395e-5 months <br /> on 4/01/2006, Fermi 2 feed water line check valves, B2100-F010A and B2100-F076A, failed their LLRT test. The leakage rate of the inboard check valve B2100-F010A was 324.21 SCFH and the leakage rate of the outboard check valve, B2100-F076A was above the measurement capability of the leak rate monitor. The combined penetration (X-9A) leakage value was thus 324.21 SCFH which is greater than the allowable containment leakage rate (La) value of 296.3 SCFH per Tech Spec 5.5.12." The licensee notified the NRC Resident Inspector.

ENS 42465 +/-
Where
Fermi Michigan (NRC Region 3)
Reporting

10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded
LER:	05000341/LER-2006-001
Time - Person (Reporting Time:+-2.9 h-0.121 days <br />-0.0173 weeks <br />-0.00397 months <br />)
Opened:	Patrick Fallon 02:45 Apr 1, 2006
NRC Officer:	Mark Abramovitz
Last Updated:	Apr 1, 2006
42465 - NRC Website
v • d • e

v t e Emergency Notification System
Fermi with 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded
WEEKMONTHYEAR2023-08-20T20:00:00 [Table view]
[ENS list for Fermi]

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