ENS 53817: Difference between revisions

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All primary and secondary containment isolation valves, with the exception of the 2T41F003A, Refueling Floor Inboard Vent Supply Isolation valve, functioned successfully. The refuel floor inboard vent supply isolation valve failed to travel fully closed on the secondary containment isolation signal and was therefore declared inoperable. The 2T41F003B refuel floor outboard vent supply isolation valve was verified to go fully closed and therefore isolation of that associated penetration line was successful. After assistance from maintenance, the valve was verified to be fully closed.
All primary and secondary containment isolation valves, with the exception of the 2T41F003A, Refueling Floor Inboard Vent Supply Isolation valve, functioned successfully. The refuel floor inboard vent supply isolation valve failed to travel fully closed on the secondary containment isolation signal and was therefore declared inoperable. The 2T41F003B refuel floor outboard vent supply isolation valve was verified to go fully closed and therefore isolation of that associated penetration line was successful. After assistance from maintenance, the valve was verified to be fully closed.
All SBGT systems functioned successfully. The associated fuse and relay were replaced, and secondary containment was returned to normal service.
All SBGT systems functioned successfully. The associated fuse and relay were replaced, and secondary containment was returned to normal service.
The licensee notified the NRC Resident Inspector."
The licensee notified the NRC Resident Inspector.
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| URL = https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2019/20190109en.html#en53817
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Latest revision as of 23:56, 23 February 2020

ENS 53817 +/-
Where
Hatch Southern Nuclear icon.png
Georgia (NRC Region 2)
Reporting
10 CFR 50.73(a)(1), Submit an LER, Invalid Actuation
Time - Person (Reporting Time:+1371.2 h57.133 days <br />8.162 weeks <br />1.878 months <br />)
Opened: Nicholas Hightower
08:12 Jan 8, 2019
NRC Officer: Jeffrey Whited
Last Updated: Jan 8, 2019
53817 - NRC Website
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