ML083030181
| ML083030181 | |
| Person / Time | |
|---|---|
| Site: | Robinson  |
| Issue date: | 10/22/2008 |
| From: | Gill T SCIENTECH |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| 44592 | |
| Download: ML083030181 (5) | |
Text
1012212008 U.S. Nuclear Regulatory Commission Operations Center Event Report Paze I General Information or Other (PAR) Event# 44592*
Rep Org: SCIENTECH Notification Date / Time: 10/22/2008 14:50 (EDT).
Supplier: ENSIGN POWER SYSTEMS Event Date / Time: 10/15/2008 (MDT)
Last Modification: 10/22/2008
.Region: 4 Docket #:
City: IDAHO FALLS Agreement State: No County: License #:
State: ID NRC Notified by: TONY GILL Notifications: ALAN BLAMEY R2 HQ Ops Officer: JOE O'HARA VERN HODGE NRR Emergency Class: NON EMERGENCY OMID TABATABAI NRO 10 CFR Section: JOHN THORP NRR 21.21 UNSPECIFIED PARAGRAPH
- POWER SUPPLIES MANUFACTURED WITH UNAUTHORIZED CAPACITOR DELIVERED TO H.B. ROBINSON
- 'On October 15. 2008, Ensign Power Systems. Inc. of Loveland, Colorado informed Scientech of a defect. An internal audit had revealed that some Model 9061-01 power supplies provided to Scientech for use in their safety related line of NUSI modules had been inadvertently manufactured with an unauthorized part.
The design required the use of two capacitors in the power line filter. When Ensign attempted to purchase the required parts, their supplier made an unauthorized substitution of capacitors. These capacitors are virtually
- identical, and the packaging was labeled with the correct Ensign Power Systems part number.
"Scientech immediately put a HOLD on all shipments of modules with Ensign power supplies until it could be verified that they were built using the correct parts. (Complete 10/15/08)
.. "Scientech located all Ensign power supplies in house and isolated them. (Complete 10/16/08)
"Scientech notified H. B. Robinson that some of the twelve modules contain power supplies with unauthorized parts. (Complete 10/16/08)
"Scientedh is working with H. B. Robinson to replace the eight Ensign power supplies with [authorized] parts. (in progress)
"Scientech will return all affected power supplies to Ensign for installation of the approved components.
"scientech will review the revised Ensign receipt inspection procedures to assure that they are robust enough to prevent reoccurrence.
10/22/2008 U.S. NuclearRegulatory Commission Operations Center Event Report Page 2 General Information or Other (PAR) Event# 44592
10 FR 1 ART :21 REPORTING FORM FOR.RE[ORF ING(OFDFEC.TS AND NONC() MPLANCE OCTOBER 21,2 108 NAME ANI).AI I RSS OF REPORTING INI)l IV UI,) OR f(;.f NIZAT IONS.
Sc ti RobtiefkI Pp.:i it Phbone: 20852-95(
"Sciemh.
200 S. \\orffA a Ct;is \Vright mi F1low CoKtro company Fax:ail:208-924m-289 SRobu~ck'a enmtissvwrighfl.com
.Idaho l:.tlls, IID 83401}
FACIM 1 U1.OMA N'\NT AND/OR PRODUC( THAT IS NON ( EMPLIAN T.
. Sciemeeh's MT] I00 iodultes coti ning insi I ower Sytes Inic. power : p~plv Modei 9061-0t . serial anubers* '5511 through 15614. l6! 10 throuAh 16128. and 61 35 throuh 1625 SI PVIAN(
I:'t FIRM I1l1E NTI I(YAT1 N NAME! ADR)ESS).
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7200 . \oodrjf Avenue Fax: 208-524-)280 Idaho Ials 1/2k. 11),401 N\AD M E in M DEFE0T4 ASSOC!ATEI SAFEIT . HAZARD, AN) THE DATE THIS I NFORMATiI{ON WAS O:iTAIN ED.
On Octoher 15. 2008. [nsign Power Scv, . . n.... Lead oonl d~dSiuie ae~t ~
t mo:
ýVA. coulhuc towl, finc ot: 1 oveb"f tmod, Comlo nkbmd Sciantecioa.cdeAn Ut. An internal audit haQ !'AedL00:d that , 9Mo 06V11 p~wNr stuppbLq cs pron idMad to Seientccli lOr use in&heir sa*-itv iclated line of N S! module, had beIen iJadvertently manuhactured with an unau:horized pait. 111e dcsign contmHed drvingVs invoked on Qthpurchasc ordhrs required &ie "c two Murata pacitors. pin (GRM43.Db7:1I3 4KW01ILin be onaks (,2 antd: C5. parof the power line filter. When Ii:nsign art mpied to 1c~imsc the cq ., ired paris. their xtppli}er made aan unaathtori~ed substitution ofll AVX 181 2[:: ?334KAT1 A.
capacitors. hese surihce iount cmpaciVors arc, %rual1.d al and the :kaging "Oas labeled with the
~ct . .nhsign Power.Systems parti "iller.EnVsign receipt nspection h lailc-to'Ansign detectthe cro. and pm:cceded to build, 204 power ....... plp lies
........wit~h the AVX capacito*r in b loaidi~s (2 and t '5.
11k ~ caacitr h~ t& sae nminl sp,_ec*iticatios as the M*t~rata eapaeitoi. ' w1*jch apparently led thie distr bhutor to make the unaiuthorized susktin However. discussions wa ih A\V. Technical Represe~ntative M r. Kem any i rexealed that u~sing. Avx~s caaio napower su*pply filter cilrcuin is 'a misapplication of the deic.'.iu hich 'aas desiuned lbr use in telephone czirceuits. Mr. Yilstated that :m ofe it'his *capacitor in power sapply miter circufits will cau~se overheating an~d Ihif lure due to a piezo etlhct - el=ectrostatic movement with the AC sign a. Thereibre. the AVX 181!2 PC334!-T I;F1A in not an acceptable .substitute *Ib the Mturata capacitor.
The E -siu Model 9061I-01 power supply is sold solely to Scientech fbr its NJS instruments product line. th power supply is uCsed in many NUStisatFty related electronic process control modules, These modules are used as safety re~lated replacemens for modules originally supplied for nclear plants by Foxboro. Westinghouse, Bailey, General Electric and others. The AVX capacitors could fail open or shorted; the first.wouid have little eliqct on the module, while the second would cause the module power fuse to open. removing power from the module. In analog modules such as buffiers. isolators, convo'erts, summers, dividers, and muktipl ers, this would result in a 7.ero output signal. tn trip modules. this would result inl the output relays going to a dUe'nergized State.
THlE \1U11BER %N )1 OCATHN Of A LU S1C i COMON FNTS IN USE AT, SUPPL1 E FOR, OR BEUNGC SUP.PLIltlD TO ONE OR MORE I.ACIFUHTIES SUýEICTI' T) 10 (FRI/ 21.
Ensign Power Systems can trice every parts from purchase order to tinal assembly it wasused in. This.allowed them to. identiljy by serial numbcr which Model 9061-01 power stipplie's were built using the. AVX capacitor.
The serial rumbers were and their h0cations arc:
15511 through 15614 = 104 power suppiies At Scientech 180 power supplies 1611 0 through 16128 = 19 power supplies At Ensign = 16 power suppliies 161.3S through 16215 " Shipped to Clie.nts - 8 power supplies 204 power supplies 204 power, supplies
/l e, serial nubr fteegtsipidpower ,supp1 ics with ,',/X capztci to~rs aire:
15515, 15518, 15521, 15524, 15525. 1552R, 16 and 15608, Scientcch can trace every parts from purchase order to job it was used on. These power" supplies.we 'tiall bouct iUnder Seientech/NUSI Purchase Order 08-114. Some were used on Job 26667. which built six new MTI 1800 modules for FI .. Robinson. The others were 4sed in three different jobs to riefurbishibodules returned from 14.13. Robinson. The jobs, quantity' of modules built, module serial numbers, and client purchase order numbers are showio below.
.I~h NiodcI Numb er Scri~ti Numnbers lcuu Client 116 26~67 V lI P ý00 o5!0(5;u57-Mt)8 ý,It .5 5) t.
.. 0.3 266u7 Rnbiý:,:jm 00)3828S',
0;05/0-07-03 ($V-Idh
!vttHSO4A5
.9.5...32.. ('5(3G499)4 267 16 M-11t 18000,505,05, 054'))7-08 (Reforbist) Roln~r~ 001914133 Examination olf'the twelve, modules revealed that the power supplies wilh the AV,.X capacitors were used in 8 11800 m.odules, shi 9400121, 95003306. 95003.22. 9500335,. 0801198, 0801199. 0801200, and 0801201.
Robinson has returned the modules to Scientech, and the power supplies S'.J have all been replaced with supplies containing the correct Capacitor; I
CORRECTI[VF ACTION, W/ICH HAS BEEN, IS BEING, OR SHOULD Ut TAKEN, INCLUIIING IRESI"}ONSLB WE i E' AND,.AN ESliJ MAIATE 01 TI PART TJNWIME INVOLVEl).
imm~ediatel put a H()A 0iv all shipments of modules with Ensign power supplies unLtil it
~ nte could be verified that they were built using6the correct parts (Comnpleie 10/15/09).
- Scieniech located alt Esn pdwer supplies in house and isolated them (Complete I)0/16,/08).
o Scientech rtcified 44, B, Robinson that some of the twelve modules contain power supplie, with unauthoirized parts (Complete 10/16/08y, Scientech is workintg with IA.B, Robinson to replace th& eight Ensign power supplies with unauthorized parts (in progress).
o Scientech will return all affeicted power supplies to Ensign* :fr installation oflthe approved components.
, Scientech will review the revised Ensign receipt inspection procedures to assure that they a roebust enouC11 to prevent reoccurrence.
CO)MMENTS ORbADVICE THAT StOULD I:E GIVEN 10 OTHER PURCHASERS OR L1S(:ENSElES.
Non e.
Sutbm itted by:
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