ML112900680

LER 80-015/01T-0:on 800317,during Refueling Outage & Insp Required by IE Bulletin 79-01B,unqualified Splices Found in Power Cables for Inboard MSIV Solenoid Valves.Cause Not Stated.Splices Replaced W/Qualified Matls

ML112900680
Person / Time
Site:	Monticello
Issue date:	03/27/1980
From:	Hammer M Northern States Power Co
To:	NRC/OI/RGN-III/FO
Shared Package
ML112900681	List: ML112900680 ML19309A877
References
IEB-79-01B, IEB-79-1B, LER-80-015-01T, LER-80-15-1T, NUDOCS 8004010455
Download: ML112900680 (3)

Text

REGULATORY *FORMATION DISTRIBUTION SY ,M (RIDS)

ACCESSION NBR:8004010455 DOC,DATE: 80/03/27 NOTARIZED: NO DOCKET #

FACIL:S0-263 Monticello Nuclear Generating Plant, Northern States 05000263 AUTH.NAME AUTHOR AFFILIATION HAMMERMF. Northern States Power Co.

RECIPNAME RECIPIENT AFFILIATION Region 3, Chicago, Office of the Director

SUBJECT:

LER 80*015/01T-0:on 800317,during refueling outage & insp required by IE Bulletin 79-01Bunqualified splices found in power cables for inboard MSIV solenoid valvesCause not stated.Splices replaced w/qualified matis.

DISTRIBUTION CODE: A002S COPIES RECEIVED:LTR - ENCL, SIZE: APO- /

TITLE: Incident Reports NOTES: -----------------------

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL ACTION: 05 BC 0a 4 4 INTERNAL:m 1 1 02 NRC PDR 1 1

" 11 MPA 3 12 1 3 14 TA/EDO 1 15 NOVAK/KNIEL 1 1

16 EEO 17 AD FOR ENGR 1 1 1 1 1 18 PLANT SYS BR 1 19 T&C SYS BR 1 1 20 AD PLANT SYS 1 22 REAC SAFT BR 1 1 1 1 24 KREGER 23 ENGR BR 1 1 1 25 POR SYS BR 1 26 AD/SITE ANAL 1 1 1 1 27 OPERA LIC BR 28 ACDENT ANLYS 1 1 1

29 AUX SYS BR 1 AD/0RP-DOR 1 1 1

AEOD 1 DOUG MAY*TERA 1 3 3 HANAUER,S, 1 IRELANDR.

1 JORDANE./IE 1 EXTERNAL: 03 LPDR 1 1 04 NSIC 1 1 29 ACRS 16 16 LJ~L~

If TOTAL NUMBER OF COPIES REQUIRED: LTTR 52 ENCL 52

NORTHERN STATES POWER COMPANY MINNEAPOLIS. MINNESOTA 55401 March 27, 1980 Mr J G Keppler Office of Inspection & Enforcement U S Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137

Dear Mr Keppler:

MONTICELLO NUCLEAR GENERATING PLANT Docket No. 50-263 License No. DPR-22 Unqualified Splices Found in MSIV Control Cables The Licensee Event Report for this occurrence is reproduced on the back of this letter. Enclosed are three copies.

This event is reported in compliance with Technical Specification 6.7.B.l.iin that a condition was discovered which was contrary to the design requirements contained in the Final Safety Analysis Report.

Yours very truly, L 0 Mayer, PE Manager of Nuclear Support Services LOM/DMM/ak cc: Hisector, IE, USNRC (40)

Director, MIPC, USNRC (3)

MPCA Attn: J W Ferman 4

-over-8 0 040 1o52i

-5

NRC FORM 366 U. S. NUCLEAR REGULATORY COMMISSION (7-77)

LICENSEE EVENT REPORT CONTROL BLOCK: IG (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 6

[E]LN 2 1 0 10 1 -iOIIOI1 010 1 010 10 1- 10 0IO L L4_1__I111111@1OWjG) 7 8 9 I NI mI NI Pl LICENSEE CODE 110lo.1loloollollo 14 15 LICENSE NUMBER j@ 26 411 LICENSE TYPE 25 110 JO 57 CAT 58 CON'T RC JO 15 101010121 61 31(10 13 11171 gi0 'I 01 31 21 71 81 01 7 8 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES FOT27) I DURING A REFUELING CUTAGE, WHILE CONDUCTING AN INSPECTION REQUIRED BY IE I BULLETIN 79-01B, UNQUALIFIED SPLICES WERE DISCOVERED IN THE POWER CABLES FOR THE E5 5 I INBOARD MSIV SOLENOID VALVES, SPLICES LOCATED IN JUNCTION BOXES BETWEEN THE (17771 ISOLENOID VALVES AND THE ELECTRICAL PENETRATION. NO EFFECT ON SAFETY SINCE I CATTATT ITATITICZ fPT p.A(T7TT TO rTAC MTTT AMT DfTITTTAhF ATITAAPTT ?iATc 1ATFP l 1fl I Il~P3 7 8 9 80 SYSTEM CAUSE CAUSE COMP. VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE EID3 7 8 9 10 L@ 11L.. 1.cJ@

12 I13 zIzIz1zIz Iz 18I Iz 19 IaL 20 j SEQUENTIAL OCCURRENCE REPORT REVISION LER/RO EVENT YEAR REPORT NO. CODE TYPE NO.

REPOR NUMBER 1

21 22 L~J

. [--

23 0 10 1115 24 1 1 26 27

.- j 28 01129 LiJ 1~

[0 '11[-

30 L=J 31 L2J 32 0

ACTION FUTURE EFFECT SHUTDOWN ATTACHMENT NPRD-4 PRIME COMP. COMPONENT TAKEN ACTION ON PLANT METHOD HOURS 22 SUBMITTED FORM SUB. SUPPLIER MANUFACTURER L..JL 33 34 z @I IL@0 35 LU@

36 1o of o o1011L 37 40 L..J.O@

41 L.UJ3 LzJ@ I zi 19 19 l@

42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS SITHE SPLICES WERE REPLACED USING QUALIFIED MATERIALS. THER JUNCTION BOXES FOR

[TD 71IEQUIPMENT REQUIRED TO FUNCTION IN A LOCA ENVIRONMENT WERE INSPECTED. NO ADDITIONAI4

[ T)1 I UNQUALIFIED SPLICES WERE DISCOVERED.

7 89 80 FACILITY METHOD OF STATUS %POWER OTHERSTATUS DISCOVERY DISCOVERY DESCRIPTION 11 7 8 9 LH G 101 01 01L1 10 12 13 N

44 j§JI INSPECTION 45 46 80 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNT OF ACTIVITY @ NA O EI[D 7 8 9 IJ @5 L.JG 10 I

11 NA 44 45 NAO II 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION 10 10 10 11 ( 12Z , I N 80 7 8 9 13 PERSONNEL INJURIES NUMBER DESCRIPTION4 7 8 1 10 9

lo 10 11 12 NA 80 1

LOSS OF OR DAMAGE TO FACILITY TYPE DESCRIPTION TIaAiGI NA 1 7 8 9 10 80 PUBLICITY NRC USE ONLY ISSUED DESCRIPTION (IIII I 1NA_ _ _ _

7 8 9 10 6869 80 NAME OF PREPARER

• PH( 61H/295-er 8004010 8