ML18219E152

Submit Licensee Event Report Nos. RO 78-051/03L-0 & RO 78-052/03L-0

ML18219E152
Person / Time
Site:	Cook
Issue date:	09/27/1978
From:	Shaller D American Electrtic Power System, Indiana Michigan Power Co, (Formerly Indiana & Michigan Power Co)
To:	James Keppler NRC/RGN-III
References
LER 1978-051-03L, LER 1978-052-03L
Download: ML18219E152 (6)

Text

1'EGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

DISTRIBUTION FOR INCOMING MATERIAL 50-315 REC: KEPPLER J G ORG: SHALLER D V DOCl3ATE: 09/27/78 NRC IN 8< MI PWR DATE RCVD: 10/03/78 DOCTYPE: LETTER NOTARIZED: NO COPIES RECEIVED

SUBJECT:

LTR 1 ENCL 30 FORWARDING LICEN EE EVENT REPT (RO 50- 15/78-051) ON 08/28/78 CONCERNING REPAIRS TO TWO REGULATING VALVES RESULTED IN A LO S OF STEAM TO THE CONDENSER AIR INJECTIOR AS BOTH VALVES INADVERTANTLY FAILED CLOSED... W/ATT LER 78-052.

PLANT NAMF: COOK UNIT 1 REVIEWER INITIAL: X J+

DISTRIBUTOR INITIAL:QP4eP

~<<'~<<~~<<<<<<~~~~~ DISTRIBUTION OF THIS MATERIAL IS AS FOLLOWS ~<<<<<<<<~<<<<<<<<

NOTES:

I 8c E - 3 CYS ALL MATERIAL INCIDENT REPORTS (DISTRIBUTION CODE A002)

FOR ACTION: BR CHIEF ORB81 BC<4~W/4 ENCL INTERNAL: EG F - '/ENCL NRC PDR<<W/ENCL

-v;~~W/g ENCL MIPC~~W/3 ENCL h C SYSTEMS BRl~4W/ENCL EMERGENCY 'PLAN BR<~W/ENCL NOVAK/CHECK~i~W/ENCL EEB<<W/ENCL AD FOR ENG<<W/ENCI PLANT Y TEMS BR%<W/ENCL HANAUER<<W/ENCL AD FOR PLANT SYSTEMS<<W/ENCL AD FOR YS h PROJ'~~W/ENCL REACTOR SAFETY BR<<W/ENCL ENGINEERING BR<<W/ENCL VOLLMER/BUNCH+~M/ENCL KREGER/ J. COLL INS@4 W/ENCL POWER SYS BR<<W/ENCL K SEYFRIT/IE>+W/ENCL EXTERNAL: LPDR S ST. JOSEPH' I<4 W/ENCL NSIC~~W/ENCL ACRS CAT B<~W/16 ENCL DISTRIBUTION: LTR 44 ENCL 44 CONTROL NBR: 78068q~87 SI ZE: 1P+1P~ 1P kw 4 I'SHE w'%%4'%3l'<<4~ 5+sl'%% kwi'%c'%% kf<<38<<% f HE END

A l I

n DONALD C. COOK NUCLEAR PLANT P.O. Box 458, Bcidgman, Michigan 49106 September 27, 1978 I

Mr. J.G. Keppler, Regional Director ~~r~ ii-a"t"'>ifg7 ill0llla<>>Lll g t.A S"s

OffiCe Of InSpeCtiOn and EnferCement g@iiuiiUSiI United States Nuclear Regulatory Conmiss on Region III 799 Roosevelt Road Glen Ellyn, IL 60137 Operating License DPR-58 Docket No. 50-315

Dear Mr. Keppl er:

Pursuant to the requirements of the Appendix A Technical Specifications the following reports are submitted:

RO 78-051/03L-0 RO 78-052/03L-O.

Sincerely, Cri ft

~ I C'>

Crsj sf f,

c Cn Crs D.V. Shaller Plant Manager CV

/bab rn C/l

'D cc: J.E. Dolan R.M. Jurgensen R. Kilburn K.R. Baker RO:III R.C. Callen MPSC HkgUUI]gsjf I

/gag [ gI2I~

P.M. Steketee, Esq.

R. Halsh, Esq.

G. Charnoff, Esq.

G. Olson 7 J.M. Hennigan 78 Og80~8 I

PNSRC J.F. Stietzel R.S. Keith T. P. Bei lman/J.L. Rischling Dir., IE (30 copies)

Dirt e MIPC (3 copies)

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NAEE FORM ~366 S. NUCI.EAR REGULATORY COMMISSION 17 77)

- LICENSEE EVENT REPORT

'4 CONTROL BLOCK:

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'I M 1 0 0 C 1 Q2 0 0 0 0 0 0 0 0 0 0 0 Q34 1 I 1 7 8 9 LICcNSEE CODE 14 15 LICENSE NUMBER .

25 26 LICENSE TYPE 57 CAT 58 CON'T,

~o>,"'".- ~LQR 8 60 61 0 5 0 0 0 DOCKET NUMBER 3 1 5 68 2

69 0 8 2 EVENT PATE 8 7 8 74 Qs 75 0 9 2 7 REPORT DATE 7 8 80 Qs

~ EVENT DESCRIPTION AND PROBABLE CONSEQUENCES Q10

~02 ON 8-28-78 DURING A RAPID LOAD REDUCTION FROM 1 0020 tO 80/43 THE'XIAL FLUX DIFFE RENCE 3 WENT OUTSIDE THE TARGET BAND ~ THE AXIAL FLUX DIFFERENCE MAS RESTORED TO WITHIN THE TARGET BAND IN 12 MINUTES IN COMPLIANCE WITH THE 15 MINUTE ACTION REQUIREMENT OF

~OS T. S. 3.2 SINCE THE TIME OUTSIDE THE TARGET BAND WAS LIMITED, PEAKING FACTORS

~OB MERE NOT SUFFICIENTLY ALTERED BY XENON REDISTRIBUTION UPON THE SUBSEQUENT RETURN TO

~07 RATED THERMAL POWER TO CAUSE ANY PROBABLE ADVERSE CONSEQUENCES.

~OB SIMILAR OCCURRENCE: 050-315 78-013 7 8 9 80

~ SYSTEM CAUSE CAUSE COMP VALVE CODE CODE SUBCOOE COMPONENT CODE SUBCODE SUBCOOE

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~ZZ 10 Qii X Q42 ~ZQ3 Z Z Z Z Z Z Q4 ~ZQs ~Z Qs 7 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION Q17 LERIRP REPQRT ACTION FUTURE EVENT YEAR

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1 26

~~

27 ATTACHMENT CODE

~03 28, 29 NPAOA TYPE

~L 30 PAIME COMP.

~31 NO.

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COMPONENT TAKEN ACTION ON PLANT hIFTHOO HOURS ~22 SUBMITTED FORM SUB. SUPPLIER, MANUFACTURER

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a 5 80 FACILITY Q

~

METHOD OF ,

STA a US <<o POWER .OTHER STATUS DISCOVERY DISCOVERY DESCRIPTION O32 7

5 8

~FQ28 9

~l0 10 0

12 Q28 13 NA 44

~AQ31 45 OPERATOR OBSERVATION 46 80 AC IVITY CONTENT 4 Q

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~00 9

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OZ~Q PERSO'IVEL INJURIES NUSEBER OESCRIPTIONO41 7 8 9 . Il 12 '0'0 LOSS OF QR DAMAGE TO FACILITY

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~7. 2 NA 7 . 39 '0

>UB'CITY 155'O DESCRIPTION QS '1 NRC USE ONLY

~~) C4 NA 8 68 69 80 48 J. M. RBndolPh (616) '65-5901 0

'I IL II

NRC FOR5>YS66 U. S. NUCI.EAR REGULATORY, COMMISSION P.77 I ./ 77>>

LICENSEE EI>>ENT REPORT

~ ~

CONTROL BLOCK: Qi (PLEASE PRINT OR TYPE ALL REQUIREO INFORMATION)

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60 61 DOCKET NUMBER EVENT OESCRIPTION ANO PROBABLE CONSEQUENCES QIO CN BOTH 8 28 78 AND 9 9 78 THE STEAN GBG~KOR U'VEL SET THB1% LOOP FOUR IlK L'EKK BISTABLE WAS FOUND TO HAVE KKZEDED THE MINIMMSET POINT LTMXT SPK.'IFIED IN

~O3 T.S. TABLE 2.2-1 ITM 515. 'IHE REQUIRED ACTICINS WERE PERFORMED WZQGN THE SPECIFIED TINE LEXIS CN BOTH OCCASIONS.

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~23 SHUTOOlVN

~Q5 24 REPORT NO, 2

26

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~03 28 ATTACHMENT CODE 29 NPROK TYPE

~L 30 PRIME COMP.

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31 NO.

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~NQ24 42 43 Q26 44 47 Q26 CAUSE OESCRIPTION ANO CORRECTIVE ACTIONS Q27 o 'ZKfiNICIAN INVESTIGATICN REVEALED THE CAUSE TO BE A BAD SOLDER JOLT ON A RESISTOR WHICH DEVZZOPS 'HiE BISTABLE INPUT CAUSING THE INPUT RESISTPMZ TO VARY.'HE SOLDER JOINT WAS REFORNEO TO CORRECT THE PROBLEM AND A RETEST WS PEBB3RYED TO VERIFY OPERABILITY. NO FURLER ACTICN IS PLAHMZ).

~l4 80 7 3 9 FACILITY STATUS POWER 8S OTHER STATUS ~ METHOD OF DISCOVERY DISCOVERY DESCRIPTION Q32 EK 7 3 L~JS 9

~0>>8

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12 17 NA 44

~BQI 45 SURVEILLANCE 80 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNTQF ACTIVITYQ3 ~ LOCATION OF RELEASE Q

~16 ~Z Q33 ~ZQ34 80 7 3 3 10 11 45 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION Q39 3

~00 9

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'iIUMBER DESCRIPTIONQ41 7 3

~00 3

0 11 Q>s 12 NA 80 SS QR QR DAMAGE TQ FACILITY

'08

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,PUBLICI v> NRC USE ONLY ISSUED DESCRIPTIQN ~6

,3 LRO 9 10 NA 68 69 80 o "

>>IA>ME OF PREPARFR Te P> PHQNE: 616-465-59P1 O