ENS Event | |
|---|---|
11:00 Nov 7, 2013 | |
| Title | Reactor Coolant System Cold Leg Drain Line Ultrasonic Indication |
| Event Description | On Thursday, November 7, 2013, while performing planned inspections on a 2 inch reactor coolant system drain line, TMI technicians identified an indication of a flaw on the weld internal diameter of an elbow to pipe weld on the line. This flaw is determined to not meet acceptable criteria and a repair is being developed. This condition is reportable under 10CFR50.72(b)(3)(ii). No actual impact occurred during plant operations.
The NRC Senior Resident Inspector has been notified. |
| Where | |
|---|---|
Three Mile Island  Pennsylvania (NRC Region 1) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded | |
| LER: | 05000289/LER-2013-001 05000289/LER-2017-002 |
| Time - Person (Reporting Time:+2.03 h0.0846 days <br />0.0121 weeks <br />0.00278 months <br />) | |
| Opened: | Edward Carreras 13:02 Nov 7, 2013 |
| NRC Officer: | Donald Norwood |
| Last Updated: | Nov 7, 2013 |
| 49512 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Not Critical |
| Scram | No |
| Before | Refueling Shutdown (0 %) |
| After | Refueling Shutdown (0 %) |
WEEKMONTHYEARENS 529472017-09-05T15:11:0005 September 2017 15:11:00
[Table view]10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded, 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material Primary Containment Declared Inoperable Due to Both Airlock Doors Open Simultaneously ENS 524152016-12-07T23:00:0007 December 2016 23:00:00 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Unisolable Reactor Coolant System Boundary Leakage ENS 495122013-11-07T11:00:0007 November 2013 11:00:00 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Reactor Coolant System Cold Leg Drain Line Ultrasonic Indication ENS 402962003-11-04T19:30:0004 November 2003 19:30:00 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Pressurizer Heater Bundle Diaphragm Plate Degraded Condition 2017-09-05T15:11:00 | |