ENS 51132
ENS Event | |
|---|---|
07:00 Mar 3, 2015 | |
| Title | Part 21 - Possible Safety Defect in Non-Installed Power Range Detector at Palisades |
| Event Description | The following is an excerpt of a report that was received via email:
This letter provides information concerning an evaluation performed by Thermo Gamma-Metrics LLC, a part of Thermo Fisher Scientific, regarding potential noncompliance of our dual uncompensated ion chamber power range detector. Based upon the evaluation, Thermo Gamma-Metrics has determined that a Reportable Condition under 10 CFR Part 21 exists for plant listed herein. The information contained in this document informs the NRC of the conclusions and recommendations derived from Thermo Gamma-Metrics' preliminary evaluation of this issue. An evaluation [was] performed by Thermo Gamma-Metrics LLC, a part of Thermo Fisher Scientific, regarding potential noncompliance of our dual uncompensated ion chamber power range detector. Based upon the evaluation, Thermo Gamma-Metrics has determined that a Reportable Condition under 10 CFR Part 21 exists for [Palisades]. The information contained in this document informs the NRC of the conclusions and recommendations derived from Thermo Gamma-Metrics' preliminary evaluation of this issue. The detector in question is in storage at Entergy Palisades and has not yet been installed in their Power Range Systems per discussion with [the System Engineer at Palisades]. A potential defect has been identified by Mirion IST. Thermo Gamma-Metrics cannot determine by itself if the potential defect would represent a substantial safety hazard to Entergy Palisades if installed in a safety related application. We supplied just one potentially defective part from [Mirion] IST to Palisades. [Mirion] IST may have supplied two other potentially defective parts to other vendors per discussions with [Mirion IST.] The immediate corrective action is for Thermo Gamma-Metrics to notify Entergy and the NRC of this potential defect. Thermo Gamma-Metrics notified Entergy Palisades on June 2, 2015. Thermo Gamma-Metrics will supply a final report on this issue by July 2, 2015 that details the plan for all corrective actions. Entergy Palisades should review the letter from Mirion IST. Thermo Gamma-Metrics will help the utility to address and remedy the situation before the power range detector is installed in the power plant.
The following is an excerpt of a report that was received via email: This letter provides information concerning an evaluation performed by Thermo Gamma-Metrics LLC, a part of Thermo Fisher Scientific, regarding noncompliance of our dual uncompensated ion chamber power range detector. Based upon the evaluation, Thermo Gamma-Metrics has determined that a Reportable Condition under 10 CFR Part 21 exists for plant listed herein. The information contained in this document informs the NRC of the conclusions and recommendations derived from Thermo Gamma-Metrics' evaluation of this issue. Report Notification Information (i) Name and address of the individual or individuals informing the Commission. Robert E. Barnes Technical Service Manager (858)449-2909 cell Clark J. Artaud Global Commercial Director Jeffery S. Tuetken Senior Electrical Engineer Thermo Gamma-Metrics LLC 10010 Mesa Rim Road San Diego, CA 92121 (ii) Identification of the facility, the activity, or the basic component supplied for such facility which fails to comply or contains a defect. The detector in question is in storage at Entergy Palisades and has not yet been installed in their Power Range Systems per discussion with the System Engineer, Mr. Michael Knapp at Palisades. (iii) Identification of the firm constructing the facility or supplying the basic component which fails to comply or contains a defect. Mirion IST Horseheads, New York (iv) Nature of the defect or failure to comply and the safety hazard which is created or could be created by such defect or failure to comply. A potential defect has been identified by Mirion IST as described in . . . [a letter] dated March 3, 2015. Entergy Palisades has determined that the potential defect would represent a substantial safety hazard if installed in a safety related application and is returning the detector to Thermo Fisher Scientific for repair on Returned Material Authorization #950. Thermo Fisher will return the dual ion chamber to Mirion IST for repair and recertification. (v) The date on which the information of such defect or failure to comply was obtained. March 3, 2015 (vi) In the case of a basic component which contains a defect or fails to comply, the number and location of these components in use at, supplied for, being supplied for, or may be supplied for, manufactured, or being manufactured for one or more facilities or activities subject to the regulations in this part. We supplied just one potentially defective part from IST to Palisades. IST may have supplied two other potentially defective parts to other vendors per discussions with Eric Brand at Mirion IST. (vii) The corrective action, which has been, is being, or will be taken; the name of the individual or organization responsible for the action; and the length of time that has been or will be taken to complete the action. The immediate corrective action is for Thermo Gamma-Metrics to notify Entergy and the NRC of this potential defect. Thermo Gamma-Metrics notified Entergy Palisades on June 2, 2015 . . . Thermo Gamma-Metrics will work with Mirion IST to verify the presence or absence of the potential defect in this dual ion chamber and repair the dual ion chamber before returning it to Entergy Palisades, as soon as repairs can be arranged and expected no later than the end of 2015. (viii) Any advice related to the defect or failure to comply about the facility, activity, or basic component that has been, is being, or will be given to purchasers or licensees. Entergy Palisades has reviewed the letter from Mirion IST and is seeking reparations. Thermo Gamma-Metrics and Mirion IST will help the utility to address and remedy the situation before the power range detector is installed in the power plant. (ix) In the case of an early site permit, the entities to whom an early site permit was transferred. Not applicable - this is not an early site permit concern. Should you have any questions regarding this matter, please contact Rob Barnes Technical Service Manager, Thermo Gamma-Metrics LLC, at (858) 882-1356. Notified R3DO (Kozak) and PART 21/50.55 REACTORS (email). |
| Where | |
|---|---|
| Mirion Technologies San Diego, California (NRC Region 4) | |
| Organization: | Thermo Fisher Scientific |
| Reporting | |
| 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect | |
| Time - Person (Reporting Time:+2268.78 h94.533 days <br />13.505 weeks <br />3.108 months <br />) | |
| Opened: | Robert Barnes 18:47 Jun 5, 2015 |
| NRC Officer: | Nestor Makris |
| Last Updated: | Jul 1, 2015 |
| 51132 - NRC Website | |
Mirion Technologies with 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect | |
WEEKMONTHYEARENS 511322015-03-03T07:00:0003 March 2015 07:00:00
[Table view]10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 - Possible Safety Defect in Non-Installed Power Range Detector at Palisades 2015-03-03T07:00:00 | |