05000237/LER-1978-061, Forwards LER 78-061/03L-0

Forwards LER 78-061/03L-0

ML17173A414
Person / Time
Site:	Dresden
Issue date:	12/08/1978
From:	Stephenson B COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17173A415	List: 05000237/LER-1978-061, Forwards LER 78-061/03L-0 05000237/LER-1978-061-03, /03L-0 on 781108:AO-2-1601-24 Failed to Close Due to Solenoid Valve Stuck Open W/Dirt in Valve Internals. Solenoid Valve Replaced,Tested & Returned to Svc
References
NUDOCS 7812150270
Download: ML17173A414 (2)

LER-1978-061, Forwards LER 78-061/03L-0

Event date:
Report date:
2371978061R00 - NRC Website

text

u Commonwealth Edison Dresden Nuclear Power Station R.R. #1 Morris, Illinois 60450 Telephone 815/942-2920 December 8, 1978 BBS Ltr. 078-1588 James G. Keppler, Regional Director Directorate of Regulatory Operations - Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137

- Reportable Occurrence Report /178-061/03L-O, Docket 11050-237 is hereby

• submitted to your office in acc'ordanc-e 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 plant shutdown required by a limiting condition for operation.

BBS/deb Enclosure cc:

Director of Inspection & Enforcement Director of Management Information & Program Control File/NRC

- REGULATORY DOCJ{ET FJ~_[ COPY

wl°T"l-*. *-

7...

-;,, \\

.1CENSEE EVENT REPORT U. S.*

LEAR REGULATORY COMMISSl.ON CONTROL BLOCK:~' ~...__._~.___._~.._~1<2) 1 0

(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) i1* l1! It IL In IR Is 12 101 al al -I al_al al al al -I al al014 11 111 11 1101 I 1© B

9 LICENSEE CODE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE JO 57 CAT 5B

~----

~N'T r 1 I B

~~~~~ W© I o I s I o I o Io I 2 13 17 1011 11 Io 1 s 17 1 s I@ I 11 21 o I a I 7 I a I G) 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT OATE BO EVENT DESCRIPTION AND. PROBABLE CONSEQUENCES@

' I 2 I !During normal unit operation, A0-2-1601-24 failed to close when its control switch r 131 !was placed in the "close" position following containment venting.

Upstream valves c I 4 l I A0-2-1601-60, -61, -62 & -23 were operable and were closed to maintain containment

• I

• I ;: 1 s I I integrity.

AQ-2,...1601-:-24 was closed 25 min later by disconnecting an air line.

This

.. _,.. ___.b6~-l I is. the.. firSL.Jlecurrence o.( this tyPe. *

I a I 8 9 80 SYSTEM

CAUSE

CAUSE

• *.'CODE

• CODE SUBCODE..

.*.. :. COMWNENT CODE COMP.

VALVE SUBCODE SUBCODE

~'

J. -.f9_1*

~-:-:...:<_* J *s -1 n~tGlL.l!l:~* u.r@r 1 v r;~ bt r*-v 1 E frx'f@

T 8

9*

10 11

. 12.

13 1B t. x* ft;?\\: 1-F I. 116\\ " >.- * : -:-.:.. *.*: .::*

• L:...::..J..\\:V *-.. ~.-\\:... ~.-!. :.:..~ -~...:..:.:..:~~:':_i ;**.. ~*!.

19 20

~

i:~RiRO LVENT YEJ>.R

\\!:/ REPORT I 7 I 8 I NUMBER 21 22 SEQUENTIAL OCCURRENCE REPORT:No.

CODE I I I 01611[

I/I lol3I 23 24 26 2 7 2B 29 REPORT

" TYPE:-*

,~

30 1=J 31 ACTION FUTURE EFFECT SHUTDOWN..

r.;:::..

ATTACHMENT NPRD-4 PRIME COMP.

SUPPLIER REVISION NO.

L2J 32 COMPONENT MANUFACTURER TAKEN ACTION ON PLANT METHOD HOURS ~. SUBMITTED FORM ::;uB.

l.£J@Ll1@

LJJ@ L!J I 01 01 a1 01

~@ W@)

33

.34 35 36 37 40 41 42 L!.I@ I v I o I 9 l SI@

CAUSE DESCRIPTION AND CORRECTIVE ACTIONS @

43 44

. 47 Io I I Val ye AQ:-.2:::J6Q-k-2~.' s _a_i~ _o_Q_~rator -solenoid.-valve stuck in the "open" position dl!le to t-------1-+-I I an accummul.a.t.i.O_~,.~~-"'.. dirt. in. the valv~ $nt~rna.1s-.

The solenoid valve was replaced 12 1 I and A0-2-1601-24 test:ed for proper operation prior to returning to service.

Due to

~*'-3~1 I the singular~ature of this event, no additional action is planned.

14 I 8

9 FACILITY f:jQ\\

STATUS

% ?OWER OTHER STATUS \\:::;J.

l__.51 W@ I 01 91 61@1..__N_A ____

8

!)

10 12 11 ACTIVITY CONTENT Q\\

RELE,>.SED CF RELEASE AMOUNT OF ACTIVITY

• =w W@) l.LJ@......

I: _NA ______

<l 9

10 11 BO METHOD OF

(.;:;\\

DISCOVERY "OISCOVERY DESCRIPTION '2_3;

~@I Attempted Valve Operation 45 46 44 so LOCATt'ON OF RELEASE@

44 45.* NA 80 PERSONNEL EXPOS\\JRES

.. _ (.;;;\\*

NLJ1,1BER A

TYPE

DESCRIPTION

TI I 0 I a.I aJ0~@ -

NA 8

9 11 12 1~3~--~-=~---~-~--~--~~-~--~---~-~--~--~--~---~----'80 PERSO~lNEL l:llJURIES C.'\\

NU~**BER DESCRIPTION~.

. =rJ I o I o I a l@L B 9 11 12 --~---~----~-~~-~-~-~-~~---'-~-~~--~----'--~~-~~BO LO!:S OF on D-"\\lAGE TO FACILITY 143' TYPE DE'.;.::RIPTIO~J

~

=EJ W@I NA NA

<l 9

PIJBLIC~l?T_Y ___

Q..

___z;.7~* llijs~1~2~14-l:so,.._,,.,...C):r--7-~---------------JSO ISSuEOC.::\\ DESCRIPTION~

NRC USE ONLY

.:Ji) LN..16 NA I I I I I I I I I I I I 2 s

!l

~10:---------------~~-!!:.:;__--~-----~--~-~--~---J6B 69 so.;

NAME OF PREPARER...

P_a_r_c_e_l_l __________ _

PHONE: ______ 2_6_5 _____ ~....----

0 (l,,