ENS Event | |
|---|---|
07:35 Aug 1, 2006 | |
| Title | |
| Event Description | At approximately 0335 EDT, LCO 3.4.13, RCS Operational Leakage, Action C was entered due to the identification of a pressure boundary leak. Reactor Coolant System (RCS) leak is believed to be a small pinhole on the weld on the downstream side of the check valve on Loop 1 Cold Leg Safety Injection Line. The estimated RCS leak rate is 0.1 gallons per minute. The Unit was in Mode 3 at the time of discovery. This event is being reported under 10 CFR 50.72(b)(3)(ii)(A).
The plant is currently evaluating the appropriate repair method for this condition. The licensee notified the NRC Resident Inspector. |
| Where | |
|---|---|
Watts Bar  Tennessee (NRC Region 2) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded | |
| Time - Person (Reporting Time:+3.95 h0.165 days <br />0.0235 weeks <br />0.00541 months <br />) | |
| Opened: | Geoff Bennett 11:32 Aug 1, 2006 |
| NRC Officer: | Jason Kozal |
| Last Updated: | Aug 1, 2006 |
| 42746 - NRC Website
Loading map... | |
Unit 1 | |
|---|---|
| Reactor critical | Not Critical |
| Scram | No |
| Before | Hot Standby (0 %) |
| After | Hot Standby (0 %) |
WEEKMONTHYEARENS 549942020-11-11T18:11:00011 November 2020 18:11:00
[Table view]10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Notification of Steam Generator Tube Degradation ENS 427462006-08-01T07:35:0001 August 2006 07:35:00 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Rcs Pressure Boundary Leakage ENS 421402005-11-14T16:41:00014 November 2005 16:41:00 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Cladding Failure to One Spent Fuel Rod Found During Inspection of Spent Fuel in the Spent Fuel Pool 2020-11-11T18:11:00 | |