ML13099A238

Notification of Potential Part 21 Report Re Series 24 Csr Relays with Oversized Cam Drive Components

ML13099A238
Person / Time
Site:	Harris, Surry, Waterford
Issue date:	03/27/2013
From:	Friedman L Electroswitch
To:	Office of Nuclear Reactor Regulation
References
48851
Download: ML13099A238 (10)

Text

0312 712013 U.S. Nuclear Regulatory Commission Operations Center Event Report Part 21 (PAR) Event# 48851 Rep Org: ELECTROSWITCH Notification Date / Time: 03/26/2013 09:01 (EDT)

Supplier: ELECTROSWITCH Event Date / Time: 03/26/2013 (EDT)

Last Modification: 03/26/2013 Region: 1 Docket #:

City: WEYMOUTH Agreement State: Yes County: License #:

State: MA NRC Notified by: LARRY FRIEDMAN Notifications: GREG PICK R4DO HQ Ops Officer: JOHN SHOEMAKER DANIEL RICH R2DO Emergency Class: NON EMERGENCY PART 21 REACTORS EMAIL 10 CFR Section: PAUL KROHN R1DO 21.21 (d)(3)(i) DEFECTS AND NONCOMPLIANCE PART 21 - SERIES 24 CSR RELAYS WITH OVERSIZED CAM DRIVE COMPONENTS The following is a summary of a Part 21 report received from Electroswitch, via facsimile:

"The root cause has been determined to be oversized OD dimension on the drive cam. This tight fit in the nylon bushing and mounting plate did not allow the drive cam to close when deenergized.

"NOTE: Any switches that have passed the bench test and/or are in operation will not degrade nor have the condition as found with the returned switches."

Affected Facilities: Waterford, Surry, and Harris.

eI

'Received at: 03/26/2013 08:57 MAR/26/2013/TUE 09:04 AM ELECTROS'ITCH SALES FAX No, 781 335 4253 P.001 S *SWITCHES & RELAYS ELECTROSWITCH uMNTOFELECTRO SWtTCH CORP 180 King Avenue Date: -ý /Z-G(VZ Weymouth, MA 02188 Phone: 781-335-5200 Fax: 781-331-3798 Attention: JjSPQ 0 - - Number of Pages: 9 (incl. cover)

Company: C). k)

!3 C,(e- a r- ~~qLJ /&brLi Q,~Asf~~

-3 Fax #:

From: Larry Friedman, QA Manager

MAR/26/2013/TUE 09:04 AM ELECTROSWITCH SALES FAX No, 781 335 4253 P, 002 ELECTROSWITCH e SWITCHES & RELAYS (UNITOF ELECTRO SWITCH CORP.

180 King Avenue

• Weymouth, MA 02188

• Phone 781-335-5200

• Fax 781-335-4253 March 25, 2013 U. S. Nuclear Regulatory Commission NRC Operations Center

-Facsimile # 301-816-5151 I

Subject:

10 CFR Part21 Reporting of Defects and Noncompliance Electroswitch Report # 10CFR21-032513 Rev. 0 To whom it may concern:

The enclosed report addresses a reportable notification on an Electroswitch Series 24 CSR Relay

.ýsembly'.

copy of the report has been mailed to our affected nuclear customers.

• Please sign below, acknowledging receipt of this report, and return a copy to the attention of Larry Friedman, Quality Assurance Manager, at the above address or fax to 781-335-4253 within

• .0 working days after receipt.

.incerely, ELECTROSWITCH Larry Friedman Quality Assurance Manager Please let us know if ANY of your mailing information changes - name of recipient, name of company/facility, address, etc. Mark the changes on this acknowledgement form and send to us by mail to the address above or by FAX to 781-335-4253.

RECEIVED:

DATE:

MAR/26/2013/TUE 09:05 AM ELECTROSWITCH SALES FAX No. 781 335 4253 P.003 ELECTROSWITCH e SWITCHES & RELAYS UNITTOF ELECTRO SWITCH CORP.

180 King Avenue e Weymouth, MA 02188

• Phone 781-335-5200 ' Fax 781-335-4253 The following information is supplied in accordance with the requirements of 10 CFR Part2 1.

A. Name and address of individual informing the Nuclear Regulatory Commission:

Larry Friedman - Quality Assurance Manager Electroswitch 180 King Avenue Weymouth, MA 02188 B. Identification of the basic component supplied which has a deviation (departure

'from the technical requirements included in the procure document):

The Series 24 CSR Relay (Electroswitch part # 88901LA, 88901LB, 88902LA, 88902LB, 88903LB, 88903LD, 88903LE shipped to customers between January 16, 2006 and December 10, 2012.

• C. Identification of the facility supplying the basic component which contains a deviation:

Electroswitch 18Q King Avenue

• Weymouth, MA 02188 D. Nature of the deviation:

The drive cam component (Electroswitch part #246-132A revision B) used in.The above referenced Series 24 CSR Relays may potentially have an oversized OD dimension. The drawing did not specify whether the OD dimension was a before or after plating condition.

E. The date on which the information of such deviation was determined:

On the basis of bur evaluation, it was determined on March 25, 2013 that Electroswitch does not have the capability to perform the evaluation to determine if a defect, which could create a substantial safety hazard, exists.

F. The number and location of all basic components which may contain the deviation:

Refer to Appendix A of this notification report.

MAR/26/2013/TUE 09:05 AM ELECTROSWITCH SALES FAX No, 781 335 4253 P.004 ELECTROSWITCH - SWITCHES & RELAYS UNIT OF ELECTRO SWITCH CORP.

180 King Avenue 0 Weymouth, MA02188

• Phone 781-335-5200 Fax 781-335-4253 G. The evaluation and corrective action which has been taken to identify and correct the deviation:

Refer to Appendix B of this notification report.

H. Any advice related to the identified deviation about the basic component that has

• been, is being or will be given to purchasers:

. 'Purchasers are being advised to perform testing to verify operation or return the product to Electroswitch.

The following personnel may be contacted regarding this notification:

Larry Friedman Quality Assurance Manager 781-607-3309

, Ed Reszenski Engineering Manager 781-607-3341 Sincerely, Larry Friedman Quality Assumace Manager cc: K. Lloyd E. Reszenski

MAR/26/2013/TUE 09:05 AM ELECTROSWITCH SALES FAX No, 781 335 4253 P. 005 ELECTROSWITCH

• SWITCHES &RELAYS UNIT OF ELECTRO SWITCH CORP.

180 King Avenue

• Weymouth, MA 02188 0 Phone 781-335-5200 0 Fax 781-335-4253 Appendix A:

Nuclear>:C:..Customer Electromitch. Qty Shipment Note Customer7 Location *(YAN).. . PO ... Order.: Shpd: Part#f lteni descriptioon. . date .

Waterford Plant, Entergy Y 10106691 Co 359003 5 88901LA SERIES 24CSR RELAY 1/16/2006 Hahnville, LA Surry Pwr Plant, Dominion Y 45435289 CO 371488 2 88903LE SERIES 24CSR RELAY 6/14/2006 Su rry, VA Waterford Plant, Entergy Y 10140147 CO 381335 1 88903LB SERIES 24 CSR RELAY 1/9/2007 Hahnville, LA Waterford Plant, Entergy Y .10142747 CO 383077 3 88902LA SERIES 24C5R RELAY 2/26/2007 Hahnville, LA Harris Nuclear, Progress Energy Y 333606 CO 393964 2 88903LD SERIES 24 CSR RELAY 10/12/2007 New Hill, NC Waterford Plant, Entergy Y 10178273 CO 401856 4 88901LA SERIES 24CSR RELAY 4/8/2008 1 relay returned Hahnville, LA on 12/12/12 Waterford Plant, Entergy Y 10254506 CO 434993 1 88902LB SERIES 24CSR RELAY 12/2/2009 Hahnville, LA Waterford Plant, Entergy Y 10257083 CO 435924 4 88902LA SERIES 24CSR RELAY 11/25/ZO09 Hahnville, LA Waterford Plant, II relay returned Entergy Y 10261733 CO 438037 4 88901LA SERIES 24CSR RELAY 2/26/2010 .on 12/12/12 Hahnville, LA Waterford Plant, Entergy Y 10278050 CO 444862 1 88902LA SERIES 24CSR RELAY 6/30/2010 Hahnville, LA Waterford Plant, Entergy Hahnville, LA Y 10325098 CO 470712 1 1 88902LA SERIES 24CSR RELAY 10/17/2011 Waterford Plant, Entergy Y 10325098 CO 475033 1 88903LB SERIES 24 CSR RELAY 12/22/2011 Hahnville, LA Waterford Plant, Entergy Y 10363312 CO 494372 1 88902LA SERIES 24CSR RELAY 12/10/2012 Hahnville, LA

MAR/26/2013/TUE 09:05 AM ELECTROSWITCH SALES FAX No. 781 335 4253 P. 006 Rev: Document no:

Electroswitch NON CONFORMANCE REPORT NONCON-1 CAR #13-002 APPENDIX B DATE: REF. #: INITIATED BY:

• A 11/28/12 Entergy CAR #LO-CAR-2-12-00083 Larry Friedman ITEM:

y 88901LA NONCONFORMANCE: AREA:

U Audit Customer compnlaint L

0 DESCRIPTION OF, NON CONFORMANCE: (ASWRITEN 'ON CUSTOMER CAR #LOO.R-2012-00083)

E A."Rlay SNI08-465410 failed, ai bench test with the foll6winj *characteristics: Contact 11/13 initially closed whenIrelay was e-energized; opened when energized but wouldnot lose again iwhen de-enrgized, noter relay failed in a similar manner. The two: relays were! quarantined by Watetford 3 and will e:bsent back toElectroswitch Under a ReturnMaterial AuthorizatiOn RA)."

IMPEDIATE DISPOSITION/SHORT TERM FIX: (DUE WITHIN 10 WORKING DAYS OF FINDING)

C

1. Immediate disposition once switch was returned on RA #4850:

M 43r aV'Initial evaluationn::Performed bench test to see if problem, could be: replicated-. Results:

R ,Switches did -initially closew relay was 'de-energized, open whený energized ';and; close when de-energized. Because:the 'results did not replicate failure 'mode at ciustomer, bengineering wvas brought into evaluation.

Engineering evaluation: Performedlbench test again. Results: Failure: mode could be replicated when switch was kept energized for a short period of time (10 seconds).

c. Based upon the results, Engineering had, recommended the drive cam portion of the drive

,assembly be checked for movement. Refer to picture #I and #2 on page 2 of'report.

Drive should cam move i freely, (rotate "and return to position), but will hang up.

Pictur #Pi All blocks to be completed and legible - no pencil

MAR/26/2013/TUE 09:06 AM ELECTROSWITCH SALES FAX No.781 335 4253 P. 007 Drjvle cam:

.4385 dimensionl referenc,6ed '.ini ta'ble, WeOW is the OD

• t=* .:

d. Measured the tiree comp onents which make:up the drive cam assembly.

Component Dimension specificAtion Actual dimension .

Drive, cam (after .43 85 +.0000/-.0005 .4388

-plating) .4392 Drive cam (before .4380 +.0000/1-.0005

- .4381

-plating) ,_ae________0__.0 0-00 ___ .43 85 Nylon bushing .4385, +.001/-.000 .4390 Mounting late .5000 +.O000/-.0005 .5000 I 2.,:Resear ched shipment history. Found 3 shipments since 2008.7 Cuastomer P:O:.# Electroswitch:Order #. Quantity ShipSdate 10178273, 40.1856 4 4/8/08 1026173'31 438037 ' 4: 2/26/10 a.Tese retuined. switches accounted for- 1' swvitch fromn each of the, above slhipmnents.:ý. If there are aniy switchs~ih Ente gy'sinventory that . aveyriot been placed itn operation, Eectiosv'itch will~takeJheni backto re-inspect anid re-test.,

3. Detailed review of the three compon1ent drawings is being performed by Engineering; RESPONDED DATE: 1/7/13 DISPOSiTIONED BY:

LARRY FRIEDMAN

• All blocks to be completed and legible - no pencil

MAR/26/2013/TUE 09:07 AM ELECTROSWITCH SALES FAX No. 781 335 4253 P. 008 WHAT CAUSED THE NONCONFORMANCE? (ROOT CAUSE):

D E The root-cause has been determined to be oversized OD dimension on the drive carnm. This tight P

A fit in the: nylon bushing and, mounting :,plate did not allow the drive cam to close whende-R T energized.

M- It-was found, during the evaluation, that the. drive cam drawing was not clear with respect to the E

N T OD dimension being suchbefore or after plating.

M G

/__NOT:._y switches,* that have passed the beheh'test;and/or are i R

hae

t-( wh6ridifion3 afouind wit th~retumred witches.

a*1op1atinw not dged nor:

)

SIGNATURE: LARRY FRIEDMAN ACTIONSTO PREVENT RECURRENCE (CORRECTIVE ACTION):

1. Engineering-will be revisingsthe drive cam drawing (see table below):

a.-ý TheOD specification on the drive eam will berevised.:,

b. The plating specification on, the drive cam will be revised.

i. The Dlating secification.ehanted:from.0004 max-t-o.0003-max.-

Component Originald gm- im*

i . ension Revised, dimension:

.______  :?.specification..

_ specificatiobi

.Drive: cam (after. .4385,+0000/-.0005 .4386max

plating) ... . ... : . . , .l :: : "  : ' [; :i [ .. :: .i . : ./ . : "

Driv.ecam.. (befoire .4380 +.0000/_.0005 .4380"+.0000/-.0002 Nylon bushing .4385 +.001:/-000 Same

.Mounting plate ' .- 5000 +/-.0000/-.0005 Same

c. With these changes, the-stack up tolerance, which may have caused a 'restriction, in movement,-will be eliminated..

2. Test procedure will be revised to keep switch energized for 10 seconds Preventive Action Report Reference#i (Where Applicable):

ASSIGNED TO:

• Larry Friedman / Al MacLean DUE DATE: 1/24/13 SIGNATURE AT COMPLETION: LARRY FRIEDMAN I AL MACLEAN DATE: 1124113

• All blocks to be completed and legible - no pencil

MAR/26/2013/TUE 09:08 AM ELECTROSWITCH SALES FAX No. 781 335 4253 P.009 CLOSE OUT DETAILS (REVIEW EFFECTIVENESS OF ACTIONS TAKEN):

1.WQuality wlmo itor auiim future. prod uctionru'.n of this switch. to :..ensure ths: pe. of::

dscrepancy doe o reoccr

2. ,ývECN #30431 .i u ....

IT:."a ... .e.C : i: 2/1.5/13.:s.,!:,":.!*::i.:

d on:- .):.io,...!.. .:.. . . -.

"....:. "i:w.hich.

• .i'::/./:. : : :.: :...: revises.driveam.r i ..":: .:.&... . * :.> -ii .:*/specificati-ons,;.

Larry Friedman SIGNATURE: 2/26/13 DATE:

A COMMENTS:

N Y

It is'noted at'Electroswith.. doe -not have"the c*.apability t pbo t in...e...

e...

defet eiktý:ahd' A~cr ýwtc'WJZ wlino thpirch~a r§. eemiei Ul

• All blo'cks to be completed and legible - no pencil