ML20076C858
| ML20076C858 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 03/12/2020 |
| From: | Hansen H, Hobbs M, Strong M Flowserve US |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| Download: ML20076C858 (2) | |
Text
9198313376 i
Flowserve Raleigh Marketing
~
FLOWSERVE March 12, 2020 US Nuclear Regulatory Commission Document Control Desk 11545 Rockville Pike Rockville, MD 20852-27 46.
05:04:51 p.m.
03-12-2020 Flow Control Division Anchor/Darling Valves BWRP Valves Edward Valves Vallek CantrDI Pmduc/s Worcester Valves
Subject:
Bench Test Failure of Model 38878-x, 3-Way, 2-Positlon Solenoid Valves at Seabrook Station for use on FWIV Actuator f
This is to notify the US Nuclear Regulatory Cqmmlsslon that, in accordance with the provisions of 1 OCFR Part 21, we have Identified a potential Issue and are submitting this Interim report of the event.
==
Description:==
On January 14, 2020, Flowserve was Informed that a Model 38878-8, 3-way, 2-posltlon solenoid supplied to Seabrook Station for use on the feed water Isolation valve actuator failed bench test at the customer site on January 13, 2020. A second solenold valve, Modal 38878-1, failed bench test at the site on January 14, 2020. The failed solenoid valves were returned to _
Flowserve for evaluation. As received solenoid valves were tested at Flowserve and failed test Evaluation:
Flowserve Is currently Investigating the root cause(s) of the solenoid valve failures but will not be able to complete this investigation within the 60-day regulatory tlmeline due to dlfflcultles determining the root cause(s} of the failures. This interim report is being submitted per the requirements of 10 CFR 21 to notify the NRC of this possible deviation and to document Flawserve's continuing evaluation to determine If these falluros represent a substantial safety hazard. The evaluation of these solenoid valve failures will be complete by June 11, 2020.
Extent of Condition:
WIii be determined once root cause{~) of the solenoid velve failures ere known.
Corrective Actions:
Will be determined once root cause(s) of the solenoid valve failures are known.
Summation:
In summary, one Model 38878-8 and one Model 38678~1, 3~Way, 2-position solenoid valves failed bench test at Seabrook Station prior to assembly on the FWIV Actuator. The solenoid valves were returned to Flowserve and failed as received tests. Investigation In to the root cause{s) of the failures is ongoing. Evaluation of whether these failures represent deviations or failures to comply that would be associated with substantial safety hazards wlll be complete by June 11, 2020.
Flowserve U S Inc FJov/Conlm1 Division Raleigh OperaUans POBoK 1961 1900 Soulh Saunders Streat Ralmgh, NC 27603 Toll Free:
1-BD0-225-6989 Phone:
1~19,ll32.0S25 Facslmlle: 1-919-1131,3369 www.nowserve.corn 1 /2
9198313376 Flowserve Raleigh Marketing Respectfully Submitted, Sincerely, Matt Hobbs, PE Engineering Manager Office: 919-334-7127 MHobbs@flowserve.com Flowserve U 6 Inc Flow Control Division Page 2 of 2 Sincerely, Megan Strong Quality Manager Office: (919) 831-3220 mstronq@flowserve.com Raleigh OperaUons POBox 1961 1000 South Saunders Street Raleigh, NC 2761l3 05:06:03 p.m.
03-12-2020 Sincerely,.
Helm Hansen Director, Plant Manager Raleigh Operations Office: 919-831-3314 HeHansen@flowserve.com Toll Free:
1.SD0.225.fl9B9 Phone:
1*919-832..0525 Facsimile: 1-919-831-3369 www..l!owseive,i:om
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