ML17173A369

Forwards LER#78-058/03L-0

ML17173A369
Person / Time
Site:	Dresden
Issue date:	11/13/1978
From:	Stephenson B COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
Shared Package
ML17173A370	List: ML17173A369 ML20027A353
References
NUDOCS 7811210177
Download: ML17173A369 (3)

Text

Commonw6h Edison Dresden Nucle~~er Station R.R. #1 Morris, Illinois 60450 Telephone 815/942-2920 November 13, 1978 BBS LTR #78-1495 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 #78-058/03L-0, Docket #050-237 is hereby submitted to your off ice in accordance with Dresden Nuclear Power Station Technical Specification 6.6.B.2.(b), conditions lead-ing to operation in a degraded mode permitted by a limiting condition for operation or plant shutdown required by a limiting condition for operation.

BBS/leg Enclosure cc: Director of Inspection & Enforcement Director of Management Information & Program Control File/NRC 91811210117 (t')

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• LICENSEE EVENT REPORT I

CONTROL BLOCK: .....___._.....__~-*~! _Lj fl\ ; a (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 6 \.Y 1!i

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-- i 8 9 I LI D I R I s I 2 101 0 I 0 LICENSEE CODE 14 15 I - I 0 I0 I0 I0 I0 LICENSE NUMBER I- I 0 W_0125 26 4 11 I 1 I 1 I 1JO10157 CAT LICENSE TYPE I 58I 0 - - - - -

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• 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES@

((JI] I During normal operation, LPCI suction valve M0-2-1501-5C failed to close while per-

@II] I forming DOS 1500-1 LPCI system valve operability test. The valve was hand cranked

~ off the back-seat and cycled three times satisfactorily. Since the valve is open

[]JI] during LPCI operation and the LPCI pump operability was notimpaired, safety sig-

• [)))) nificance was minimal. This is the first occurrence of this type of failure *

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i 8 9 80 SYSTEM CAUSE CAUSE COMP. VALVE CODE CODE SUBCODE COMPONENT CODE SUB CODE SUBCODE I sl Fl@ w@ w@ vi Al LI VI El x1e l!J@)) ~@

9 10 11 12 13 18 19 . 20 SEQUENTIAL OCCURRENCE REPORT. REVISION

0. LER/RO CVENTYE.A.A REPORT NO. CODE TYP.E NO.

\;._:J REPORT NUMBER I 7 I8 I I I Io 1s1 a I I/I 10 13 I W L=l ~

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 :;us. SUPPLIER MANUFACTURER W@W@ W@ W I 01 01 01 01 ~@ L.!1@) L.!!J@ I c I 6 I 6 'J 5 l@)

33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS @

lJJ]J I Valve stem was not adequately lubricated. After lubricating stem, the valve was EIIIJ successfully cycled three times. The breaker contact6rs were cleaned and checked and ITIIl the torque switch se.ttings were verified before the valve was cycled.

Valve lubrication program had the valve scheduled for lubrication in October, but OJ)) I valve failed before lubrication was accomplished .. Lubrication interval shortened (OV~R) a 9 BO FACILITY f:iQ\

\:::::J METHOD OF ~

STATUS  % POWER OTHER STATUS DISCOVERY DISCOVERY DESCRIPTION ~

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9 45 46 80 ACTIVITY CONTENT Q\

RELE,,..SED OF RELEASE AMOUNT OF ACTIVITY~ LOCATION OF RELEASE @

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1 9 10 11 NA 44 45 80 PERSON:*JEL EXPOSURES (':;;:;\

NUl,1BER ~TYPE DESCRIPTION

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9 .11 PERSONNEL INJURIES .

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'0 N'~flf,~_JerE~CRIPTION

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.! 'J I) 80 PUULICITY f':::\

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