05000249/LER-1980-009, Forwards LER 80-009/03L-0

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Forwards LER 80-009/03L-0
ML17174A490
Person / Time
Site: Dresden Constellation icon.png
Issue date: 03/25/1980
From: Stephenson B
COMMONWEALTH EDISON CO.
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17174A491 List:
References
80-241, NUDOCS 8004020309
Download: ML17174A490 (2)
v • d • e


LER-1980-009, Forwards LER 80-009/03L-0
Event date:
Report date:
2491980009R00 - NRC Website
v • d • e

text

Commonweal-dison Dresden Nuclear Power Station R.R. #1 Morris, Illinois 60450 Telephone 815/942-2920 March 25, 1980 BBS LTR /180-241 James G. Keppler, Regional Director Directorate of Regulatory Operations U. S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137

- Region III

/

I

/

Reportable Occurrence Report f/80-9/03L-0, Docket._ 11050-249, 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.

\\

BBS:lcg Enclosure cc:

Director of Inspecti.ioir.

tep e~son.

Station Superintendent Dresden Nuclear Power Station Direc.tor of Management InfoEnation & Program Control File/NRC MAi~ 3 1 \\980

~RC:F.ORM 366

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771

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.ENSEE EVENT REPORT

  • e
  • ~ CO~OLBLOCK:!

._ -~_._____.l.._*__.1._. __.l_._,j 0 (PLEASE PRINT OR TYPE.ALL REQUIRED INFORMATION)

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  • 15 LICENSE NUMBER 25 26 LICENSE TYPE
JO 57 CAT 58 CON'T roTtl

~

-~~~ ~Io 15 10 10 10 12 14 19 10)10 13 10 16 1s 10 1©1 o I 3 I 2 Is Is Io I@

... 60

  • 61
      • DOCKET NUMBER ss*

69... EVENT DATE 7_4 75 REPORT DATE 80 EVENT DESCRIPTION A~_D.PROBABLE CONSEQUENCES@

Jo 121 TDuring-Unit 3 refueling outage, while performing LPCI logic tests, injection valve fo ! JI I MO 3-1501-22A failed to open.

Valve did open via remote. control switch.' This is the I 0 14 1*1 first occurrence of this type. *Safety significance ni+/-nimized since the other subsyst~ml I 0 Is I l~ou1d have functione*d as designed, and the valve was capable of b~ing opened from the I 0 ! s I I control room.

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80 SYSTEM CAUSE* **

CAUSE

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10 11 12

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. 19 SEQUENTIAL

. OCCURRENCE REPORT VALVE SUBCODE w@

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"LER/RO LEVENTYEAR.

REPORT NO.

CODE TYPE

\\!.:I REPORT

I 8 I 0 I I. I I 0 I 0 I 9 I.
  • 1...,..,

I 0 '3 I w

I I NUMBER

. 21 22 23 24

  • 26 *.

27 28 29 30 31 REVISION NO.

L9..J 32 COMPONENT TAKEN ACTION-*

  • ON PLANT
  • METHOD HOURS 22 SUBMITTED

.FORM SUB.

. SUPPLIER

. ACTION** FUTURE EFFECT SHUTDOWN

~

ATTACHMENT

.NPRD-4 PRIME COMP.

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MANUFACTURER

  • 33 34.

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36.

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. 41 42 43 I Al 3 1 °1 2 1@,

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  • CAUSE DESCRiPTION AND CORRECTIVE ACTIONS @

44 47 pnvestigation revealed a loose wire on terminal block in MCC-38-7 due to a stripped I

1brass screw.

Repface stripped brass screw with*proper type, a,nd replaced lugs on wires I

~** 1 term_ inatirig on block_. *This was the only brass 'screw found out of 57 MCC' s checked *

  • J112J ~-~~-------.::....---------------~"'-----------------~------------.;,__---~---~~~~.;,__~~~------~----------'

I 1 f 3 r I Logic test reconducted and MO 3~1501-22A functioned as designed.

LPCI logic test will I

~

I continue to be performed every refueli!lg outage..

. 8. 9

  • FACILITY*

f:iQ\\. *.METHOD OF

~

80 STATUS

  • .._POWER OTHER STATUS ~-

DISCOVERY DISCOVERY DESCRIPTION ~

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l_Su_rv

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. 10 12_.

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44 45 46

80.

ACTIVITY. CONTENT

~

~RELEASED OF RE_ LEASE AMOUNT OF ACTIVITY.~

~

W@L2J@I N/A 1**

7 8.g

. 10 11 44

. LOCATION OF RELEASE @

N_/_A __ - __________ _.I

-~

~

PERSONNEL EXPOSURES.

~

. NUMBER..

TYPE.

DESCRIPTION 39

~8 JO!OjO(~~~~~-*-*_A_. ____ ~------~--~~----~

~.

9 11 12 13 80 PERSONNEL INJURIES

<f2 NUMBER

. DESCRIPTION 41

~8101010~~--*-N~.------------~----------

~

9 n

.12 80 LOSS OJ' OR DAMAGE TO FACILITY '4J\\

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NRC USE ONLY 8

9 10 68 69 80*;

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