ML18352A345

Licensee Event Report ER-76-009, Containment Spray, a Condition Leading to Operation in a Degraded Mode

ML18352A345
Person / Time
Site:	Palisades
Issue date:	05/14/1976
From:	Bixel D Consumers Power Co
To:	James Keppler NRC/RGN-III
References
LER 1976-009-00
Download: ML18352A345 (2)

Text

consumers

• Power company General Offices: 212 West Michigan Avenue, Jackson, Michigan 49201

• Area Code 517 788-0550 May 14, 1976 Mr James G. Keppler Office of Inspection Enforcement Region III US Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137 DOCKET 50-255, LICENSE DPR PALISADES PLANT - ER-76

• CONTAINMENT SPRAY Attached is a reportable occurrence which relates to the Palisades Plant. This occurrence has been classified as a condition leading to operation in a degraded mode permitted by a limiting condition for operation or plant shutdown required by a limiting condition for operation.

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David A. Bixel/ //

Assistant Nuclear Licensing Administrator

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LICENSEE EVENT REPORT-

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1 6 LICENSEE

• LICENSE EVENT NAME LICENSE NUMBER TYPE TYPE

.IMlrlPIAILlrl I oI o-1-1 o I oI o I o I o1-1 oI o I 14111111111 Io I 3 I 7 8 9 14 15 25 26 30 31 32 REPORT REPORT TYPE. SOURCE OOCKl;T NUMBER EVENT DATE REPORT OATE

@EJcoN'T ~I.........,~I L!J L1J IOI 51ol-101215151 lol411l2l1l6I lolsl11411l6l 7 8 57 58 59 60 61 68 69 74 75 80 EVENT DESCRIPTION lo'2f !During testing of the containment spray system the left channel relay (No 5P7, I 7 ~ 9 ' BO IPl3l !Contacts 4, 6 and 7) showed intermittent operation. The redundant spray system I 7 8 9 . 80 lol41 ltested satisfactorily. The relay contacts were cleaned and the retest was satis- I 7 8 9 80 10151 !factory. Dust covers will be installed to enclose these relays. (ER-76-09) I 7lol6I.__

8 9 __________________________________________________________________________. 80 7 8 9 PRME 80 SYSTEM CAUSE COMPONENT COMPONENT CODE COOE COMPONENT CODE SUPPLIER MANUFACTURER VlOLATKJN 7

@Ells!BI L!J 8 9 10 11 lrlNJsJTIRJuJ 12 17 w43 I c I 3 I 6 I . o47I 44 L!!J 48 CAUSE DESCRIPTION lolal jThe most likely cause of this problem is considered to. be dirty contacts. The I 7 8 9 80 lolsl !relay was a Ty;pe PM, Cat #5Ul0, Bulletin 7305. I 7 8 9 BO

~9.______________...,.....__________________________________________________________________8__,0 FACILITY METHOD OF STATUS  %. POWER OTHER STATUS DISCOVERY DISCOVERY DESCRIPTION EEJ8 LlU Io I ol oI I NA I L2J I NA 7 9 10 12 13 44 45 46 BO FORM OF ACTIVITY CONTENT 7

rn 8 RELEASED W

9 OF RELEASE W I..__ _ NA 10 11 AMOUNT OF ACTIVITY

_ _ ___.I 44 1*

45 LOCATION OF RELEASE NA 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION 7

~I 8 9 ol olol 11 w12 13 NA BO PERS.ONNEL INJURIES NUMBER DESCRIPTION

~I ol ol ol NA 7 8 9 11 12 80

. PROBABLE CONSEQUENCES

~ I None - The Technical Specifications permit limited operation with system out of 7 8 9 service. BO LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION Oil W 7 8 9 10 NA 80 PUBLICITY (I0 NA 7 8 9 BO

- AOOITIONAL FACTO:

B 9 80