05000316/LER-1979-029-03, /03l-0:on 790715,axial Power Distribution Monitoring Sys Detector Set Improperly.Caused by Poor Communication Between Shift Changes.Setpoint Reset.Setpoint Values Posted

/03l-0:on 790715,axial Power Distribution Monitoring Sys Detector Set Improperly.Caused by Poor Communication Between Shift Changes.Setpoint Reset.Setpoint Values Posted

ML17326A255
Person / Time
Site:	Cook
Issue date:	09/13/1979
From:	Rischling J INDIANA MICHIGAN POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17317B541	List: 05000316/LER-1979-029, Forwards LER 79-029/03L-0 05000316/LER-1979-029-03, /03l-0:on 790715,axial Power Distribution Monitoring Sys Detector Set Improperly.Caused by Poor Communication Between Shift Changes.Setpoint Reset.Setpoint Values Posted
References
LER-79-029-03L-01, LER-79-29-3L-1, NUDOCS 7909190431
Download: ML17326A255 (7)

LER-1979-029, /03l-0:on 790715,axial Power Distribution Monitoring Sys Detector Set Improperly.Caused by Poor Communication Between Shift Changes.Setpoint Reset.Setpoint Values Posted

Event date:
Report date:
3161979029R03 - NRC Website

text

U. S.

CLEAR REGULATORYCOMMISSION NRC FORM 366 P.77)

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8 CENSEE EVENT REPORT,.

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Qs 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES Qlo ON JULY 15, XT WAS DISCOVERED THAT AFTER"COMPLETING REPAIRS TO

~O3 THE APDMS ON JULY 13, AN APDMS DETECTOR F LIMIT SETPOINT WAS SET AT THE T.S.

VALUE.

THIS WAS RESET TO THE PROPER VALUE.

THIS

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~O7 IS NON-CONSERVATIVE IN RESPECT TO A PREVXOUS COMMXTMENT STATED IN RO-316/78-68.

THXS EVENT IS NON-CONSERVATIVE IN RESPECT TO T.S. 3.3.3.7.b.

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10 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION LFRIRP EVENTYEAR REPORT NO.

CODE TYPE NO.

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THE REPAIR TECHNICIAN WAS GIVEN THE CORRECT SETPOINT VALUES ~

HOWEVERI AS A SHIFT CHANGE OCCURRED I THE NEW INDIVIDUALDXD 3

4 NOT RECEIVE THESE VALUES.

THE TRACES DURING THIS EVENT HAVE BEEN REVIEWED AND THERE WAS SUFFICIENT MARGIN SO THAT

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% POWER OTHER STATUS Q 0

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10 12 13 44 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNTOF ACTIVITYQ36

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10 NAME OF PREPARER J. L. R1SCM.1llg 80 68 69 616-46 5-59.01 80 NRC USE ONLY 3

80 46 0

SUPPLEMENT TO LER 4 79-029/03L-0 SUPPLEMENT TO CAUSE DESCRIPTXON THERE WOULD HAVE BEEN NO F VXOLATIONS, TO PREVENT RECURRENCE Z

THE POWER LEVEL F ALARM ACTUATXON SETPOINT VALUES ARE NOW POSTED Z

NEXT TO THE APDMS.

ADMXNXSTRATXVE CHANGES WERE ALSO MADE TO UPDATE THESE VALUES AS NEW DATA ZS OBTAINED.

THIS EVENT WAS DETERMINED TO BE REPORTABLE ON AUGUST 14, 1979.

I ~

~'o C,.:.~mkaazeeazawsacmam DONALD C. COOK NUCLEAR PLANT P.O. Box 458, Bridgman, Michigan 49106 September 13, 1979 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-74 Docket No. 50-316

Dear Mr. Keppler:

Pursuant to the requirements of the Appendix A Technical Specifications the following report/s are submitted:

RO 79-029/03L-O.

Sincerely, W~ D.V. Shaller Plant Manager

/bab cc:

J.E.

Dolan R.W. Jurgensen R.F. Kroeger R. Kilburn R.J. Vollen BPI R.E.

Masse RO:III R.C. Callen MPSC P.W. Steketee, Esq.

R. Walsh, Esq.

G. Charnoff, Esq.

J.M. Hennigan G. Olson J.F. Stietzel PNSRC E.L. Townley Dir., IE (30 copies)

Dir., MIPC (3 copies)

SEr >7 <<I":

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25 26 LICENSE TYPE 30 57 CAT 58 LICENSE NUMBER QB IL If+ 0 5

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1 6

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9 QB SOURCE 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES Q10 ON JULY 15, IT WAS DISCOVERED THAT AFTER COMPLETING REPAIRS TO

~O3

~p4 THE APDMS ON JULY 13, AN APDMS DETECTOR F LIMIT SETPOINT WAS SET AT THE T. S.

VALUE.

THIS WAS RESET TO THE PROPER VALUE.

THIS IS NON-CONSERVATIVE IN RESPECT TO A PREVIOUS COMMITMENT STATED IN

~OB

~O7 RO-316/78-68.

THIS EVENT IS NON-CONSERVATIVE IN RESPECT TO T.S. 3.3.3.7.b.

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THE REPAIR TECHNICIAN WAS GIVEN THE CORRECT SETPOINT VALUES ~

HOWEVERI AS A SHIFT CHANGE OCCURRED i THE NEW INDIVIDUALDID 3

NOT RECEIVE THESE VALUES'HE TRACES DURING THIS EVENT HAVE BEEN 4

REVIEWED AND THERE WAS SUFFICIENT MARGIN SO THAT

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ACTIVITY CONTENT RELEASED OF RELEASE AMOUNTOF ACTIVITYQ

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SUPPLEMENT TO LER 4 79-029/03L-0 SUPPLEMENT TO CAUSE DESCRIPTION THERE WOULD HAVE BEEN NO F VIOLATIONS, TO PREVENT RECURRENCE 2

THE POWER LEVEL F ALARM ACTUATION SETPOINT VALUES ARE NOW POSTED Z

NEXT TO THE APDMS.

ADMINISTRATIVE CHANGES WERE ALSO MADE TO UPDATE THESE VALUES AS NEW DATA I'S OBTAINED.

THIS EVENT WAS DETERMINED TO BE REPORTABLE ON AUGUST 14, 1979.

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