ENS 43678
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ENS Event | |
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18:15 Oct 1, 2007 | |
Title | Replacing the Emergency Response Facility Computer System |
Event Description | The Plant Process computer system (Emergency Response Facility Computer System) will be taken out of service for approximate 3 week period starting October 1, 2007, to implement a planned modification. The current ERFCS is being replaced and a computer outage is required for the installation of the new ERFCS. During this time period Emergency Response Data System (ERDS) and Safety Parameter Display System (SPDS) functions will not be available. However, the Qualified Safety Parameter Display System (QSPDS) will still be operable in the Control Room. This notification is being made to inform the NRC that the ERDS will be unavailable until this modification is complete. The operation of the plant systems will not be affected due to this planned action. ERDS and SPDS parameters will be monitored by control board indications. All contingency actions required by ERFCS-3, ERFCS Maintenance Outage Plant Mode 1, have been taken. Meteorological data to support the Emergency Response Organization (ERO) will be obtained from the local national weather service (if needed) as described in our Radiological Response Plan. A follow up notification, to the NRC will be given once ERDS and SPDS are returned to service. The NRC Resident Inspector has been informed.
The licensee completed planned modifications and fully restored the Plant Process computer system (Emergency Response Facility Computer System). The licensee notified the NRC Resident Inspector. Notified R4DO (Powers) , T. Kardaras (email). |
Where | |
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Ft Calhoun ![]() Nebraska (NRC Region 4) | |
Reporting | |
Other Unspec Reqmnt | |
Time - Person (Reporting Time:+-3.97 h-0.165 days <br />-0.0236 weeks <br />-0.00544 months <br />) | |
Opened: | Erick Matzke 14:17 Oct 1, 2007 |
NRC Officer: | Mark Abramovitz |
Last Updated: | Oct 30, 2007 |
43678 - NRC Website
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Unit 1 | |
---|---|
Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
WEEKMONTHYEARENS 521882016-08-17T23:26:00017 August 2016 23:26:00
[Table view]Other Unspec Reqmnt Offsite Power Source Below the Operability Limit ENS 458982010-05-04T20:12:0004 May 2010 20:12:00 Other Unspec Reqmnt Discovery of After-The- Fact Emergency Condition - Unusual Event Due to Rcs Lineup ENS 436782007-10-01T18:15:0001 October 2007 18:15:00 Other Unspec Reqmnt Replacing the Emergency Response Facility Computer System ENS 435822007-08-21T02:03:00021 August 2007 02:03:00 Other Unspec Reqmnt Inoperable House Service Transformers ENS 408852004-07-20T23:18:00020 July 2004 23:18:00 Other Unspec Reqmnt 4-Hour Notification Required by Technical Specifications 2016-08-17T23:26:00 | |
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