ENS Event | |
|---|---|
02:00 Oct 26, 2010 | |
| Title | Containment Liner Corrosion Degradation |
| Event Description | This report is made in accordance with 10 CFR 50.72(b)(3)(ii) as a condition resulting in a serious degradation of the Containment liner. During a visual inspection on 10/22/10, corrosion was found in the containment sump liner on Unit 3, A more detailed inspection was performed on 10/24/10 after the corroded area was cleaned. Evaluation of the inspection results has determined that the corrosion is greater than allowed by the ASME Code, including through wall areas, and requires repair. At this time, it is not known whether any leakage caused by the through-wall condition would have resulted in exceeding the containment allowed leakage limit. Unit 3 is currently in Mode 5 preparing to return to service following refueling. The corroded areas will be repaired prior to entering Mode 4.
The licensee notified the NRC Resident Inspector |
| Where | |
|---|---|
Turkey Point  Florida (NRC Region 2) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded | |
| Time - Person (Reporting Time:+-3.5 h-0.146 days <br />-0.0208 weeks <br />-0.00479 months <br />) | |
| Opened: | Keith Maestas 22:30 Oct 25, 2010 |
| NRC Officer: | Vince Klco |
| Last Updated: | Oct 25, 2010 |
| 46362 - NRC Website
Loading map... | |
Unit 3 | |
|---|---|
| Reactor critical | Not Critical |
| Scram | No |
| Before | Cold Shutdown (0 %) |
| After | Cold Shutdown (0 %) |
WEEKMONTHYEARENS 575832025-03-03T23:03:0003 March 2025 23:03:00
[Table view]10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Degraded Condition ENS 564742023-04-15T15:12:00015 April 2023 15:12:00 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded RCS Pressure Boundary Degraded ENS 555742021-11-12T21:05:00012 November 2021 21:05:00 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Reactor Coolant System Pressure Boundary Degraded ENS 499332014-03-20T02:02:00020 March 2014 02:02:00 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Potential Leak Discovered Around Pressurizer Heater Bank ENS 463622010-10-26T02:00:00026 October 2010 02:00:00 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Containment Liner Corrosion Degradation ENS 443992008-08-07T16:30:0007 August 2008 16:30:00 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Degraded Principal Safety Barrier ENS 436412007-09-14T03:04:00014 September 2007 03:04:00 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Potential Reactor Pressure Boundary Leakage ENS 436272007-09-08T16:28:0008 September 2007 16:28:00 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Reactor Pressure Boundary Leakage 2025-03-03T23:03:00 | |