ML17252B489

LER 78-047/03L-0 for Dresden, Unit 2 Re During Shutdown While Performing Monthly Sblc Tank Boron Concentration Surv., the Volume/Concentration Parameters of Sblc Tank Were Found Outside Tech. Spec. Limits

ML17252B489
Person / Time
Site:	Dresden
Issue date:	09/08/1978
From:	Stephenson B Commonwealth Edison Co
To:	James Keppler NRC/RGN-III
References
BBS LTR 78-1244 LER 78-047/03L-0
Download: ML17252B489 (2)

Text

Commonwealth Edison Dresden. Nuclea***wer Station RR. #1 .

Morris, Illinois 60450 Telephone 815/942-2920

• • 1 September£, 1978 BBS Ltr. #78-1244 i

James G. Keppler, Regional Director Directorate of Regulatory Operations - Region III U.S. Nuclear Regulatory Commission Fi 799 Roosevelt Road

(/)

C,;.r Glen Ellyn, IL 60137 '

- - **-*- -----*-_.. __ *.;.;.....-=_-

-- -- - ' I"'" **. ~_,. ~ ... ' *1,. --*-*-----*

Report~b1~- o~*~~rrence R~-~;~~ ns.::041 Jo3T~"cr;-=n~~k~t' :*lioso=z3r *1s hereby

• submitted to your office in accordance_ with Dresden Nuclear Power Station Technical Specification 6.6.B.2.(b), conditions leading to operation in a degraded mode permitted by a limiting condition for operation or ~lant shutdown required by a limiting condition for operation.

on

• station Superintendent Dresden Nuclear Power Station BBS/deb Enclosure cc: Director of Inspection & Enforcement Director of Management Information & Program Control File/NRC

.  :~!NTAOL BLOCK: ~ 0 (PLEASE PRINT OR TAALL REQUIRED INFORMATION) rn ,r i L1D, R, s ,

7 8 9 LICENSEE CODE

. 1 2

14 15 6

10 1o 1o 1- 1 o 1o 1o , o 1o 1- 1o 1o 101 LICENSE NUMBER _ 25 26 41 11 11 11 .1101 LICENSE TYPE :JO 57 CAT 58 1 10 CON'T Io I1 I 7 8

~~~~~ L!:J© I o I s I o I o I o I 2 I 3 17 101 o I s I o I s I 1 60 61 DOCKET NUMBER 68 69 EVENT DATE I s '©I o ! 9 I o I s 17 I s 74 75 REPORT DATE 80 10

EVENT DESCRIPTION AND PROBABLE CONSEQUENCES@

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.... I During shutdown while performing monthly SBLC tank boron concentration surv., t!1e

[]TI] I volume/concentration parameters of SBLC tank were found outside tech. spec.

[Q]I) j limits. The safe'ty significance was minimal. A similar event was reported under rn:::m I R.O. #50-237/1970-71.

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((J]J 7 8 9 80 SYSTEM CAUSE CAUSE COMP. VALVE

.. * *CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE L!U@-=* I zt ii. ZI .z l!Z 1. zI@

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SEQUENTIAL OCCURRENCE REPORT ~REVISION t:::;\ LER/RO cV~N:r YEP..R  : REPORT NO. CODE TYPE NO.

\;..,:.) REPORT NUMBER I 7I 8J I I I o I 4f '71 . "l/ I I oI 3 I ~ **1=J. ~

21 22 23 24 26 27 28 29 30 31 32 ACTION FUTURE EFFECT SHUTDOWN t::::;... ATTACHMENT NPRD-4 PRIME COMP. COMPONENT TAKEN ACTION ON PLANT METHOD HOURS ~ SUBMITTED FORM:>UB. SUPPLIER MANUFACTURER ll!J@LU@ L9@ LU I L!J@ W@ IZ I I 9 I@

l 33 34 C-~~SE DESCRl.PTl~N 35 AND CORRECTIVE 36 ACT.l~N_S 37 01 01 01 01

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43 44 19 9 47 o::I§J !Error in reading SBLC tk vol apparently occurred in orevious mo. although tank was

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ITIIJ wJth;i.n specification at that time. Coupled with normal pump packing leaks dnr_i...n.,.P':........_ __.

CIIIJ .Julv. surv. faii~<l*;;;i~~~~:--req~.lirement for--August. Tank was brought into-soec-

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IIIIl f _ification. The event was reviewed with person involved and remaining grouo members.

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7 8 9 80

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Ffi.~f01y METHOD OF

% POWER OTHER STATUS DISCOVERY DISCOVERY DESCRIPTION ~

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. 7 s 9 ACTIVITY CONTENT 10 12 1'3

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• RELEASED OF RELEASE AMOUNT OF ACTIVITY~ LOCATION OF RELEASE @

ETIJ ~@) W@) .... I -._N_A_ _ _ _ _ ___. NA 7 B 9 10 11 44 45 BO PERSONNEL EXPOSURES Q\

DESCRIPTION~

• ITITI I 0 I 0 I Oj@~@..___ _ _ _ _N_A_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ____.

• NUMBER TYPE 7 8 9 11 . 12 13 80 PERSONNEL INJURIES  !:;\

NUMBER DESCRIPTIOlll6

~I 01 01 Ol@)._________NA_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ___.

7 B 9 11 12 80 LOSS OF OR DAMAGE TO FACILITY-143' TYPE DESCRIPTION i..::.::J fili] ~@ NA 7 8 9. ' ~,0------------------------------------------------------------

PUBLICITY r.;., NRC S. F. 0 so ISSUED(,;";\ DESCRIPTION~ U

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PHONE: __X_-_2 _3 _7

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