ENS 52615
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ENS Event | |
|---|---|
23:00 Mar 14, 2017 | |
| Title | Part 21 Notification - Evaluation of a Deviation - Starter Contactor Failure |
| Event Description | Pursuant to 10 CFR Part 21, this is a non-emergency notification by Energy Northwest concerning a defect in Size 1 Freedom Series Starters with nominal 120 VAC coils manufactured by AZZ/NLI [Nuclear Logistics Inc.] used at Columbia Generating Station.
On February 8, 2017 Energy Northwest was notified by NLI of a deviation associated with starter contactors used at Columbia that failed to close due to overheating of the starter coil. The coils that were provided were determined to not meet specified voltage ratings. The evaluation completed by Energy Northwest on March 14, 2017 concluded that the deviation did create a Substantial Safety Hazard, and is reportable under 10 CFR 21.21(d)(1) as a defect. A 30 day report will be issued by April 13, 2017 per 10 CFR 21.21(d)(4). The licensee performed a prompt operability assessment for the two starters currently installed. The licensee will notify the NRC Resident Inspector. |
| Where | |
|---|---|
| Columbia Washington (NRC Region 4) | |
| Reporting | |
| 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect | |
| Time - Person (Reporting Time:+40.12 h1.672 days <br />0.239 weeks <br />0.055 months <br />) | |
| Opened: | Don Gregoire 15:07 Mar 16, 2017 |
| NRC Officer: | Bethany Cecere |
| Last Updated: | Mar 16, 2017 |
| 52615 - NRC Website
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Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (98 %) |
| After | Power Operation (98 %) |
WEEKMONTHYEARENS 577852025-06-23T15:27:00023 June 2025 15:27:00
[Table view]10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 Report - Solenoid Valve Defect ENS 529132017-08-12T07:00:00012 August 2017 07:00:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 Report - Relay Mounting Plate Mounted Upside Down ENS 526152017-03-14T23:00:00014 March 2017 23:00:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 Notification - Evaluation of a Deviation - Starter Contactor Failure 2025-06-23T15:27:00 | |
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