ML20155C409
| ML20155C409 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 05/16/1988 |
| From: | Andognini G SACRAMENTO MUNICIPAL UTILITY DISTRICT |
| To: | Martin J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| REF-PT21-88, REF-PT21-88-076-000 88-03, 88-3, PT21-88-076-000, PT21-88-76, NUDOCS 8806140194 | |
| Download: ML20155C409 (4) | |
Text
i
' :f o
C Fermane U S. NUCLE A:s E.EtutATORY COMMisseO88 APPROVE 0 oms N3. 3150 104 LICENSEE EVENT REPORT (LER) 8 x *'a 8 5 8t "
F ACILITY NAME 03 DOCKlf NUMatR ul P AGE d )*
Rancho Seco Nuclear Generatina Station 01510101013l1 l2 ilorl0 3 1
14TLE (Al Potential Pro 31em with Gems Sensors Model No. 63328A Modular Receivers tyENT DAf t tll L E R NUMS E R t al REPORT DATE Di OTHER F ACILITill INv0LVtO 19)
MONTM DAY YiAR YiAR "y
y,%
MONTM DAY YtAR
- ACs kit T N AW.S DOCntT Nuwetmist G
None 0l51010l0 1 i I 0l4 1l 5 8 8 8l8 0l q 3 g0 O j5 1l6 8lB o,3,,,,,o OPE R A Tina 7"" " RT rs susuiTTto PvRsuANT To THE REOviREMENis or to Ce m 4 <Cau* eae e,-em et rae r o.o,i n u aoo' m N
n.eam nam
.on.iun i Tuim g
n ai.nuu
.ui.nu
.onmun.i T u u.i noi iy a n.= mo n.i so.umui w m.iun..i x
gTgs,=,g.g a amo n.i unmunii
.on.iun-n Ai uw n u.w nno.,
unman i
.o n.usnan.>
Part 21 20 406 f.n t n.i
.T3mit2linal 73t.ittnal LICtN5f t CONTACT FOR TMt1 Lim H2, NAWS TELtPMONE NvvetR ARE A CQOE Steve Rutter. Supervisor, Independent Investigation / Reviews Group 9,1,6 4,5,2,
,3, 2,1,1 COMPLlit ONE LINT FOR E ACM CCMPONENT F AILunt OtSCRitt0 IN TMit REPORT (13)
CAU$$
Sylit M COW'ONtNT gf
" pAfs
,AC-Rt RiaeLE TO N CAUSE S v tT E M C'> WPON I N T y
pqgg I
I I I I I I I
i i i I 1 I I
I I I I I I I
I I I I I I SUPPLEMtNTAL REPORT E XPECTIO 11 A>
UONTM DAY vtAR YtS it! re, two st. EXPECT $O $vgut$$104 CA TEI NO l
l l
An T A ACT a.-,,,.,a M
.....,,,..,,,,,...,..u...,,,,,n.,
In accordance with 10 CFR 21.21(b)(2), the Sacramento Municipal Utility District hereby submits a written report to document a potential problem with Gems Sensors Model No. 63328A Modular Receivers.
Gems Sensors is stocking a nonqualified manufacturer's toggle switch for the Modular Receiver under a qualified toggle switch part number. Gems Sensors was unable to produce evidence that they performed the required analyses to ensure that the toggle switches being stocked were equivalent to the qualified toggle switches.
The Modular Receivers installed at Rancho Seco have the qualified toggle switch installed, h
8806140194 880516
/
PDR ADOCK 05000312 l
\\
s ncn NRgf 30 " *"
- f kAC F.ehn 3044 LICENSEE EVENT REPORT (LER) TEXT' CONTINUATION
' U s NUCLE A2 f f YULITO27 COMMIS8tO81 amovto ove No. nso-oio4 EXPihtS: 8/31/80 P ACluTV NAME (1)
DOCKEi NUMetR (21 L t R NUMet R (6)
PAQs (3) 9aa "R!?,P.
- '#.?
Ranchn 9 pen Nuclear Conpratinn EtaHon o l5 jo lo lo l 3l 1l p qg d Ol 2 01 0 01 2 0F 0l3 mr -
.==
. am w.nir,
,c_._.*-
__ _Comoanv/ Facility In accordance with 10 CFR 21.21(b)(2), the Sacramento Municipal Utility District (5HUD) hereby submits a written report to document a potential problem with Gems Sensors tiodular_Rece_Lvers.
Resoonsible Officer G. Carl Andognini, Chief Executive Officer, Nuclear is the responsible officer submitting this report.
Date Resoonsible Officer Received Information The Chief Executive Officer, Nuclear received information concerning this problem on May 16, 1988.
The Chief Executive Officer, Nuclear determined that this problem should be reported under the provisions of 10 CFR 21 on May 16, 1988.
Basic Comoonent Descriotion Type: Hodular Receiver Model:
63328A..
Service: 4 to 20 ma converter Firm Sucolvina Basic Conoonent IM0 Delaval Inc.
Gems Sensors Division Cowles Road Plainville, CT 06062-1198 Descriotion of the Problem Gems Sensors Division has failed to maintain design change control sufficiently to ensure the qualified integrity of the Model 63328A Modular Receiver.
Hyle Laboratories Qualification Report No. 45700-1 for the Model 63328A Modular Receivers indicated specific manufacturers, models, and catalog numbers for some components including toggle switch St. Revision K to the part number / drawing for toggle switch S1 lists multiple nonqualified manufacturer's toggle switches as equivalent to the qualified toggle switch; however, Gems Sensors could not produce evidence of a commercial grade dedication process for i
the nonqualified toggle switches.
The only toggle switch currently being i
supplied under the part number for Si is a nonqualified switch.
)
a,a.c.,'o a M ****
. v i om iw.+u.cnn
~
1 RCFenn 3BSA U 8, NUCtl A% KEIULATORY COMul54404 LICENSEE EVENT REPORT (LER) TEXT CONTINUATION A E CvtD OWS NO. 3160-4104
[XPtR{$; $/31/M P ActLITY NAME til DOCKti NUMSE R t2l Lgm NUMetm (63 P AGE 136 9aa "ROn" Ranchn Rnen Nuclear.Gonnratina Station ol5l0jolol3l_jjp gj g ol01 3 0I O Ol 3 oF O l3 mw=
so.e.<
mucu mann SHUD. performed a vendor audit of the Gems Sensors Division of IMO Delaval during February 1988. During this audit an investigation of the equipment qualification traceability of a toggle switch-ordered by SHUD was performed.
The investigation determined that a nonqualified manufacturer's toggle switch was being stocked under the qualified toggle switch part number.
The qualified toggle switch is a Cutler-Hammer switch, 3PDT, part number 7670K and is identified as such in the bill of materials for Hyle Laboratories Test Report No. 45700-1.
The switch presently being stocked under the qualified toggle switch part number is a Carling Electric switch.
Gems Sensors could not produce evidence that they had performed the required analysis to ensure that the toggle switches being stocked were equivalent to the qualified toggle switches.
The SHUD auditor immediately notified the Gems Sensors Quality Assurance management of the potential reportability under 10 CFR 21 and advised them to take immediate action to evaluate reportability.
Since (to the best of SHUD's knowledge) Gems Sensors has not st.bmitted a 10 CFR 21 s eport on this item, SHUD is filing this 10 CFR 21 report to alert the industry to a potential problem.
Number and Location of Such Comoonents at Rancho Seco Rancho Seco has four Gems Sensors Model 63328A Modular Receivers.
The receivers are used for containment emergency sump level and Containment.
Building water level. All of the Gems Sensors Modular Recrivers at Rancho Seco have the qualified toggle switch installed; therefore, there was no safety significance to Rancho Seco due to this problem.
Corrective Action The immediate corrective action taken was to remove Gems Sensors from SHUD's Approved Suppliers List and to document the potential problem with the toggle switches.
Upon notification of the potential problem, each of the Hodular Receivers at Rancho Seco was inspected to determine which toggle switch was installed in the receivers.
Each of the receivers at Rancho Seco has the qualified toggle switch installed.
p,ep.Mm..
(
Q
,o kSMUD SACRAMENTO MUNICIPAL UTILITY DISTRICT O P. O. Box 15830, Sacramento CA 95852$1830,1916) 452-3211
~
AN ELECTRIC SYSTEM SERVING THE HEART,iOF' CALIFORNIA GCA 88-301
O30 MAY 161983 U. S. Nuclear Regulatory Commission Attn:
J. B. Martin, Regional Administrator Region V 1450 Maria Lane, Suite 210 Walnut Creek, CA 94596 Docket No. 50-312 Rancho Seco Nuclear Generating Station License No. DPR-54 10 CFR 21 REPORT 88-03: POTENTIAL PROBLEH HITH GEMS SENSORS H0 DEL NO. 63328A H000LAR RECEIVERS
Dear Hr. Martin:
In accordance with 10 CFR 21.21(b)(2), the Sacramento Municipal Utility District hereby submits 10 CFR 21 Report 88-03 documenting a potential problem with Gems Sensors Model No. 63328A Modular Receivers.
Please contact me if you have any questions.
Members of your staff with questions requiring additional information or clarification may contact Mr. Steve Rutter at (916) 452-3211, extension 4674.
Sincerely, G. Carl Andogn,i ni Chief Executive Officer, Nuclear g ;cy,7,ca; Attachment M1SM3 cc w/atch:
G. Kalman, NRC, Rockville (2)
A. D'Angelo, NRC, Rancho Seco F. J. Miraglia, NRR, Rockville (2) j INPO TWJ RANCHO SECO NUCLEAR GENERATING STATION O 1444o Twin Citics Road, Herald, CA 95638-o7o9; (2o9) 333 2935