05000315/LER-1978-056-03, /03L on 780923: After Shutdown Boron Concentration Was 1940 Ppm,Which Is Below Limit Due to Reduction of Boron Level After Sampling at 1% Accumulator Vol Increase.Admin Procedure Was Rev to Req Level & Boron Verification

/03L on 780923: After Shutdown Boron Concentration Was 1940 Ppm,Which Is Below Limit Due to Reduction of Boron Level After Sampling at 1% Accumulator Vol Increase.Admin Procedure Was Rev to Req Level & Boron Verification

ML17317A678
Person / Time
Site:	Cook
Issue date:	10/20/1978
From:	Randolph J INDIANA MICHIGAN POWER CO.
To:
Shared Package
ML17317A677	List: 05000315/LER-1978-056-03, /03L on 780923: After Shutdown Boron Concentration Was 1940 Ppm,Which Is Below Limit Due to Reduction of Boron Level After Sampling at 1% Accumulator Vol Increase.Admin Procedure Was Rev to Req Level & Boron Verification
References
LER-78-056-03L, LER-78-56-3L, NUDOCS 7810270193
Download: ML17317A678 (3)

LER-1978-056, /03L on 780923: After Shutdown Boron Concentration Was 1940 Ppm,Which Is Below Limit Due to Reduction of Boron Level After Sampling at 1% Accumulator Vol Increase.Admin Procedure Was Rev to Req Level & Boron Verification

Event date:
Report date:
3151978056R03 - NRC Website

text

eo C+-~

DONALD C. COOK NUCLEAR PLANT P.O. Box 458, Bridgman, Michigan 49106 October 20, 1978 Mr. J.G.

Keppler, Regional Director Office of Inspection and Enforcement United States Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, IL 60137 Operating License DPR-58 Docket No. 50-315

Dear Mr. Keppler:

Pursuant to the requirements of the Appendix A Technical Specifications the following report is submitted:

RO 78-056/03L-O.

Sincerely, 4~ D.V. Shaller Plant Manager

/bab cc:

J.E.

Dolan R.W. Jurgensen R.F. Kroeger R. Kilburn R.J. Vollen BPI K.R. Baker RO:III R.C. Callen MPSC P.W. Steketee, Esq.

R. Walsh, Esq.

G. Charnoff, Esq.

G.

Olson J.M.

Hennigan PNSRC J.F. Stietzel Dir., IE (30 copies)

Dir., MIPC (3 copies) 0 I;T S 3 1978

I 0

'I

(

V I

'1

U. S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT

,Q

{PLEASE PRINT OR TYPE ALLREQUIRED INFORMATION)

Q3 P~

QE 25 26 LICENSE TYPE 30 57 CAT 58 Qs I

0 2

0 7

8 QB EVENT DATE 74 75 REPORT DATE 80 4

NRC FORM 366 17-7 7 I cg-CONTROL BLOCK:

1

~ M I

D C

C 1Q2 8

9 LICENSEE'CODE 14 15 LICENSE NUMBER CON'T gag soIJcE ~LQB 0

5 0

'0 0 '3 1

5 0 DOCKET NUMBER 68 69 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES Q10 JUST AFTER WAS RECEIVED ON III1 ACCUMULATOR.

A SAMPLE SHOWED THE BORON CONCENTRATION TO BE 1940 PPM WHICH IS BELOW THE MINIMUM RE UIREMENT OF T.

S. 3.5.1.

THE BORON

~OB

~O7 CONCENTRATION WAS ADJUSTED AND THE ACCUMULATOR WAS RETURNED TO OPERABLE STATUS WITHIN 35 MINUTES.

THE REMAINING THREE ACCUMULATORS WERE PERABLE.

THE

'4 HEALTH AND SAFETY OF THE PUBLIC WAS NOT AFFECTED.

~os 80 7

8 9

SYSTEM

CAUSE

CAUSE COMP.

VALVE.

CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE

~sF Q11 0

Q12

~z Q>>

A 0

c 0

N Q4 LLIQ75 LzJ Q'9 7

8 9

10 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT LERiRO EVENT YEAR REPORT NO.

CODE TYPE Q17 REPQRT ~70

+

~Q5 21 22 23 24 26 27 28 29 30 31 ACTION FUTURE EFFECT SHUTDOWN ATTACHMENT NPRDQ PRIME COMP.

TAKEN ACTION ON PLANT

~

METHOD HOURS Q22 SUBMITTED FORM SUB.

SUPPLIER QIB LUS LUQ2P

~ZQ21 0

0 0

0 LgJQ23

~Q24 MO 33 34 35 36 37 40 41 42 43 44 CAUSE DESCRIPTION ANDCORRECTIVE ACTIONS 27 o

OUR ADMINISTRATIVE LIMIT RE UIRES BORON SAMPLING AT ACH 0.75 CCUMU AT REVISION Uo COMPONENT MANUFACTURER 47 Q26 VOLUME INCREASE.

THE LEVEL'AD BEEN REDUCED AFTE THUS MASKING THE VOLUME INCREASE.

THE ACTUAL VOLUME INCREASE WAS lX.

THE ADMINISTRATIVE PROCEDURE WAS REVISED TO RE UIRE LEVEL AND BORON CONCENTRA I 4

VERIFICATION AFTER ANY LEVEL CHANGE.

45 NA 7

8 9

FACILITY

~gp METHOD OF STATUS

~

% POWER OTHER STATUS ~

DISCOVERY DISCOVERY DESCRIPTION Q32

~15 0

P2.

~OO O

P29 NA

'AQB1 OPERATOR OBSERVATION 7

8 9

IO 12 13 44 45 46 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNTOF ACTIVITY~

LOCATIONOF RELEASE Q36

~Z Q>>

L~JQ34 7

8 9

10 44 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION ~39

~17

~OO OP~ZPEE 7

8 9

11 12 13 PERSONNEl. INJURIES NUMBER DESCRIPTION 41 5

~0.

0 0

Q49 NA 80 80 80 80 7

8 9

7 8

O 7

8 NAME OF PREPARER J

~

M. Randolph 9

11 12 LOSS OF OR DAMAGETO FACILITYQ TYPE

DESCRIPTION

Z P42 NA 9

10 P U8 LI C ITY ISSUED DESCRIPTION~

9 10 80 68 69 PHONE:

(616) 465-5901 80 NRC USE ONLY 80 ER 0a