ENS 41675
ENS Event | |
|---|---|
04:00 May 6, 2005 | |
| Title | Loss of Safety Function on Reactor Water Clean Up Instrumentation |
| Event Description | Report - Loss of Safety Function
On 5/5/06 at 1130 [EDT] it was discovered test equipment was left installed in the Reactor Water System instrumentation that rendered both system delta flow isolation instruments inoperable. The test equipment was removed and both instruments were declared operable at 1455. The system was in service at the time. The NRC Resident Inspector was notified.
Update to Event Notification (ENF 41675) Retraction: An 8-hour notification was made on May 6, 2005, in accordance with 10CFR50.72(b)(3)(v), for the loss of the safety function for the control of radiation release. This report was made when it was discovered that test equipment (a pressure gauge) had been left attached to the Reactor Water Cleanup System (RWCU) differential flow isolation piping. The gauge was removed and the system aligned for proper operation. An engineering evaluation determined the temporary tubing and gauge would have maintained their structural integrity during a seismic event. Therefore, there was no impact on the piping for the leak detection capability of the RWCU differential flow isolation. Since there was no loss of function for the RWCU differential flaw isolation there was no loss of safety function for the control of radiation release. Because there is no loss of safety function, this condition is not reportable. Since the condition is not reportable, ENF 41675 is retracted. The licensee will be notifying the NRC Resident Inspector. Notified R3DO (Lara). |
| Where | |
|---|---|
Perry  Ohio (NRC Region 3) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material | |
| Time - Person (Reporting Time:+12.77 h0.532 days <br />0.076 weeks <br />0.0175 months <br />) | |
| Opened: | Dave O'Donnell 16:46 May 6, 2005 |
| NRC Officer: | Pete Snyder |
| Last Updated: | Jun 7, 2005 |
| 41675 - NRC Website
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