05000249/LER-1980-039, Forwards LER 80-039/03L-0

Forwards LER 80-039/03L-0

ML17193A551
Person / Time
Site:	Dresden
Issue date:	11/18/1980
From:	Scott D COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17193A552	List: 05000249/LER-1980-039, Forwards LER 80-039/03L-0 05000249/LER-1980-039-03, /03L-0:on 801022,during Normal Operation,While Conducting Isolation Condenser Valve Operability Tests, Inboard Isolation Valve 3-1301-1 Became Inoperable When Breaker Tripped Upon Receiving Open Signal.Cause Unknown
References
DJS-80-262, NUDOCS 8011250325
Download: ML17193A551 (2)

LER-1980-039, Forwards LER 80-039/03L-0

Event date:
Report date:
2491980039R00 - NRC Website

text

e Comm~alth Edison Dresden ~r Power Station R.R. #1

. Morris, Illinois 60450 Telephone 815/9~2-2920 DJS LTR t/80-262 November 18, 1980 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 #80-39/031-0, Docket #050-249 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 operation.

. DJS/lg Enclosure Station Superintendent Dresden Nuclear Power Station cc:

Director of Inspection & Enforcement Director of Management Inf onnation & Program Control U.S. NRC, Document Mgt. Branch File/NRC 801125-0325:.

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NRC FORM 366

(:7-771.-f U.S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT.

CONTROL.BLOCK:

._I _.___.__.___.__..___.IQ 1

6 (Pt.EASE PRINT OR TYPE ALL REQUIRED INFORMATION!.

!ill I I I 1 I D I R I s I 3 101 0 *. I 0 I-I 0 10 10 10 10 t p 7

8 9

LICENSEE CODE 14 15 LICENSE NUMBER p IQ)I 41 ll ll ll 1101. I I© 25 26 LICENSE TYPE 30 57 CAT 58 CON'T [IE]

7 8

~~~~ ~©I o I s I o. I o I o 12 14 19 101 1 I o I 2 I 2 I s I o IG) 11 11 11. 17 1 s Io 1 G) 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES@

((III I During normal operations, while conducting Isolation Condenser valve operability tests,

!Ill inboard isolation valve 3-1301-1 became momentarily inoperable when electrical breaker

((IT]

tripped upon. receiving a valve open signal.

Safety significance was minimal because

.J [Q]!]* I outboard isolation valve 3-1301-2 had been tested operable previously and the valve

[)))) I breaker was reset immediately.

Similar event was reported by DVR No. 12-2-79-37.

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LER/RO CVENTYEAR

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REPORT 18 10 I NUMBER 21 22

CAUSE

CAUSE COOE SUBCOOE COMPONENT COOE

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11 12 13 18 SEQUENTIAL OCCURRENCE REPORT NO.

cooe 1013191 I/I 10 131 23 24 26 27 28 29

COMP, SUB CO OE

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19 REPORT TYPE

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30*

VALVE SUB CODE

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20 l=J 31 REVISION NO.

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32 80 TAKEN ACTION ON PLANT METHOD HOURS 22 SUBMITTED FORM :SUB.

ACTION FUTURE EFFECT SHUTDOWN

~* ATTACHMENT NPR0-4 PRIME COMP.

SUPPLIER COMPONENT MANUFACTURER

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CAUSE DESCRIPTION ANO CORRECTIVE ACTIONS 43 44 47 I The cause of the event is unknown.

The 3-1301-1 valve is a Crane, 14 inch, motor o::IIJ I operated gate valve.

Following breaker trip, the breaker was immediately reset and o::m i_t_h_e_3_-_1_3_0_1_-_1_v_a_1_v_e_w_a_s_c_y_c_1_e_d_t_h_r_e_e_t_un_* _e __

s_sa_t_i_sf_a_c_t_o_r_i_l_y_. ___ T_im_i_n_g_o_f_t_h_e_I_s_o_l_a_t_i_* o_n ___ _.

[J))] I Condenser Valves will continue t-o be conducted quarterly.

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FACILITY

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STATUS

% POWER OTHER STATUS l..::;:J IIITJ ~@ I 0 !"9 17 l@I._. ___

NA _______ _

80 METHOD OF DISCOVERY OESCRIPTION DISCOVERY

~@I Operator Observation 8

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10.

12 11 ACTIVITY CONTENT

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RELEASED OF RELEASE AMOUNT OF ACTIVITY GE W@ l.Ll@)._I ___

N_A ____

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9 10 11 44 45 46 80 LOCATION OF RELEASE @

NA 44 45 80 PERSONNEL EXPOSURES.

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NUMBER

(.'.;".:;\\TYPE

DESCRIPTION

ITE] I 0 I 0 I Oj'2.)l2.j@._* _____

N_A,........ __________________

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11 12 13 80 PERSONNEL INJURIES Q

NUMBER OESCRIF'TION6 G:JiJ I 01 01 Ol@).__ ___

N_A ___________________________________ __....

1 8

9 11 12 80 LOSS OF OR DAMAGE TO FACILITY t4J'I TYPE

DESCRIPTION

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NA 1

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10 80 PUBLICITY f':":;\\

33i ISSUED~ DESCRIPTIOr~ ~

8 0 112 5-* 0 NAC USE ON Ly

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10 68 69 Ray*Magrow NAME OF PREPARER~-----------------

815,... 942-2920 X-421 80*;;

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