05000249/LER-1980-028, Forwards LER 80-028/03L-0

Forwards LER 80-028/03L-0

ML17192A888
Person / Time
Site:	Dresden
Issue date:	08/14/1980
From:	Scott D COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17192A889	List: 05000249/LER-1980-028, Forwards LER 80-028/03L-0 05000249/LER-1980-028-03, /03L-0:on 800718,during Setpoint Surveillance, Solenoid Valve for Torus to Reactor Bldg Vacuum Breaker 3-1601-20A Determined Inoperative,Preventing Valve from Opening.Caused by Mechanical Failure.Valve Replaced
References
80-1, NUDOCS 8008200318
Download: ML17192A888 (2)

LER-1980-028, Forwards LER 80-028/03L-0

Event date:
Report date:
2491980028R00 - NRC Website

text

Commo.9alth Edison Dresden Nuclear Power Station R.R. #1 Morris, Illinois 60450 Telephone 815/942-2920 DJS LTR /180-:::l James G. Keppler, Regional Director August 14, 1980 Directorate of Regulatory Operations - Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137 Reportable Occurrence Report /180-28/03L-0, Docket /1050-249 is being.

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 plant shutdown required by a limiting condition for ** c:_

oP.eration.

'DJS:lcg Enclosure

/Jr)!~

D. J. Scott Station Superintendent

• Dresden Nuclear Power Station cc:

Director of Inspection & Enforcement' Director of Management Information & Progra~ Control U. S. NRC Document Management Branch File/NRG AU6 1 9 1980

• !PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1-10 10 101 4 11 1 1 11 I 1 181 I I 0 25 26 LICENSE TYPE JO 57 CAT 58 CON'T

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~~~~~- ~©I 0 r 5 I 0 r 0 I 0 I 2 14 19 1010 17 11 18 18 10 l©I b I 8 1*1 *1 4 I 8 I 0 l(v

60.

61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION A~O PROBABLE CONSEQUENCES@

I During normal op.eration while performing set point surveillance, solenoid valve for

~

1torus to Reactor Building vacuum breaker 3-1601-20A was determined to be inoperative,

0 14.I I preventing the valve from opening.

This event is of minimal safety significance

0 Is I 1since redundant valve 3-1601-ZOB was immediately tested and proven operable (T.S. 3. 7.A. I

) 0 Is I 13

• b)

• This. is the first event of this nature.

' o I 1 I r;;-r;n

~9 SYSTEM

CAUSE

CAUSE CODE CODE*

SUBCODE COMPONENT CODE 1s IA l@.L.:J@ ~@) IY.lAILlvlolPI@

9 10 11 12 13 18

~

LERI.RO LVENT YEAR*

\\:..:,) REPORT I 8 I 0 I NUMBER 21 22 SEQUENTIAL OCCURRENCE

.REPORT NO.

CODE I

I 1°12 18 1

1.......-1 1°1 3

1.

2:J 24

26.

27 28 29 COMP.

suetODE

~

19 REPORT TYPE L~J 30 VALVE suBCODE L.:..J @

20

. L=J 31 REVISION*

NO.

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32 80 TAKEN** ACTION ON PLANT*

METHOD HOURS

.

• SUBM1TTED*

ACTION FUTURE EFFECT SHUTDOWN W?

ATTACHMENT NPRD-4'*

FORM:;UB.

PRIME COMP.

SUPPLIER COMPONENT MANUFACTURER'. -----

Ll@W@

L~J@ ~@ 10 10.10 I I L!J@

33 34 35 36 37 40

41.

l!J@ ~@ 1 V 10 19 IS I@

44 47...

CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 42 43 I 1 Io I j~e cause of this event is attributed to the mechanical failure of the solenoid valve.

[I]JJ 1The entire solenoid va~ve was replaced and the vacuum breaker tested satisfactorily~

o:::ITJ 1No further corrective action deemed necessary.

TIEl L1 a 9 FACILITY l3(j\\

METHOD OF

(.;':;\\

80 STATUS

% POWER.

OTHER STATUS \\::::J DISCOVERY DISCOVERY DESCRIPTION ~

pli} ~@ !o O I 9 I 6 l@I N/ A.

j L!J@l_s_u_rv_e

__ i_l_l_an_c_e_._ur_s_1_60_0_-_3 ______ _

AID CONTENT

'2

'1 r::;;.,

'5

'6 80 R

EASeD OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELE~E @

OJI)

E @ L1J@)I N/A

..... I __

N_/_A ___________

__.I 1

a 1 o 11 44 45 so PERSONNEL EXPOSURES

• ~

NUMBER.

(.;'::;\\TYPE.

. DESCRIPTION

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jO jO !O l~LJ<§ ____________ N_/_A ______________________________________ ___.

.7 B

9 11 12 13 80 PERSONNEL INJURIES

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NUMBER DESCRIPTION 41 r,-T;"l IO IO IO l@) __

• ______

f_A _________________ _,..... ____ _,.... ___________________ ___..._.

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9 11

12.

80 LOSS OF OR DAMAGE TO FACILITY t4:i" TYPE

DESCRIPTION

"\\::J f1T91 ~@).

N/A f;"-4 9 10 so PUBLICITY DI SE ISSUEOt,;:;\\ DESCRIPT10N ~

NRC* U ONL y l2lol ~6~

__________ N_M--------------------~~ II 11111111 II I~

17 i i 114 68 69 80*;