ML23306A072
| ML23306A072 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 10/27/2023 |
| From: | Anaya L Curtiss-Wright Nuclear Division |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML23306A076 | List: |
| References | |
| Download: ML23306A072 (3) | |
Text
10/27/23 17:56:39 8553056216 Fax Seruer Chris Agtang CURTISS WRIGHT To:
Fax Number: 3018165151
Subject:
Interim Letter to NRC Fax Cover Sheet From:
"Agtang, Chris" <cagtang@curtisswright.com>
Fax#:
855-305-6216 Date:
10/27 /23 05:56:02 PM Total Pages:
3 including this cover page Memo:
Chris Agtang Systems Administrator Curtiss-Wright 2950 E. Birch Street, Brea, CA 92821 United States T 7'14-982-'1886 IM: 714-588-5256 cagtang@cw1isswright.com I www.curtisswright.com Page 001 TI1is e-mail and any files transmitted with it are proprietary and intended solely for the use of the individual or entity to whom they are addressed. If you have reason to believe that you have received this e-mail in error, please notify the sender and destroy this e-mail and any attached files. Please note that any views or opinions presented in this e-mail are solely those of the author and do not necessarily represent those of the Curtiss-Wright Corporation or any of its subsidiaries, Documents attached hereto may contain technology subject to government export regulations. Recipient is solely responsible for ensuring that any re-export, transfer or disclosure of this inforn1ation is in accordance with applicable government export regulations. 111e recipient should check this e-mail and any attachments for the presence of viruses. Cmtiss-Wright Corporation and its subsidiaries accept no liability for any damage caused by any vims transmitted by this e-maiL For inforn1ation about how we process personal data and monitor communications, please visit https://www,curtisswright,com/privacy-notice/default.aspx
10/27/23 17:56:58 8553056216 Fax Seruer Chris Agtang Page 002 This electronic communication, including attachments, is for the exclusive use of addressee and may contain proprietary, confidential and/or privileged information. If you are not the intended recipient, any use, copying, disclosure, dissemination or distribution is strictly prohibited. If you are not the intended recipient, please notify sender immediately by phone, destroy this communication and all copies.
10/27/23 17:57:05 8553056216 CURTISS-WRIGHT Octob~'r 27, 2023 U.S, Nuc.!PiH RPgulatory Cormnhsfon Attn: Dncurnt~'nl:. Cor1t.rol Desk Washington, DC ?0555*000.l Fax Seruer Chris Agtang Page 003 l\hJciear Division 2950 Birch Streot Br{i,:i, CA ~nK:*1 t: n4.:',2n.no11 F: 1*14.sw.cq2s www. curtl:;,r~wt"tqltt, cotn/NuclH::::irDivisic1n This is to notify the US Nt1c:k.11:n-Regulatory Cornrni.~ision th~Jt.1 in <3n:ordanc:e vvith the provisions of :10CFH2.L2l (a}{2L EnPrt.E:1ch has identified o Pt>tentiaf fssuc ;_\\\\!HJ subrnitting this lnterirn report.
DPscrtptfon:
On August' 30, 2023 1 [nt::rtnch de*tern1ln12d about a pot<.::1ntia! deff>ct for Pot:ent\om~ttcr (PIN 02:0GOS) basc~d on tJ1e inspection of returnc*d [terns from !<H&.NP, Kon;~s-A c-ert£1in 111..wnber of returned potentiorneters wll:hibited incon$LStt'nt resistance v<.1!uf's nt tJos,t1or,s (.\tnJk(~)-
Th(' ~ubjeC"t potentiorneters arc u~~(:~(:I in Modul({tlng Actuators,,
Cv21!u:atic1n; Initial te*:::,ting of the toflowtng the Factory,t\cu:ptance Test Prou:~dure did not: detect this evid;::,nt, Subse"CHlf ca!,.!$(*' ;,H; ;":i,.,,.,,,..,,, in an internal
!'h1:~ w!pi;;r-. The ne1,,1,1_, shorter vviper introch.1cPd the possibility of hrtenn!nent ""n,,e,*ohinn hPtWPen the wiper {sl.iding contl.~t:t) and the toH of' vvfr,e rit' 02rtain (stroke)., resulting ln rr\ornPn1ary signal The ev~i!uatron at [nertE~ch ;;dsn i.'.i ot1g()fng n:-~g~Ht.!!ng the potcntfvl c:ffcct:s of wip(:t f unctiond lily of the fVloch1k1Ung /\ctu;:nor ~-incl vvm not tH? ccnnp!et(?d wi'thin 60 of cornp!etion is Poti;~ntla! r,f'fr.:.cct.f'.d Pl;,;1nt~;:
Soqth T t::i-xa~., Project/ STP Nucle~H Custcmer POs: J on the Thr' expi)cted rlr.1t*i:1*
If you h;,;ve ;)ny
!(Jr'\i:lV<J({iicurtissitvright,con1 or by this ple~.1:st;* l;onli:in !YH'. tit your convenk:nn~ via Prnf!H at at 714-982 *lB.56.
J of l