ML20005A387

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Final Deficiency Rept Re Random Failure in Vol Control Tank Level Control Sys,Initially Reported 810527.Util Will Review Plant Procedures for Assuring Operator Action to Maintain Adequate Water Supply to Charging Pumps
ML20005A387
Person / Time
Site: Marble Hill
Issue date: 06/24/1981
From: Shields S
PSI ENERGY, INC. A/K/A PUBLIC SERVICE CO. OF INDIANA
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
10CFR-050.55E, 10CFR-50.55E, S81-09, S81-9, NUDOCS 8106300271
Download: ML20005A387 (2)


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s. w. shields Senior Vice PresxJent .

Nuclear Division June 24, 19 81 S81-09 Mr. James G. Keppler, Director Docket Nos.: STN 50-546 U. S. Nuclear Regulatory Commission STN 50-547 Region III Construction Permit Nos.:

799 Roosevelt Road CPPR - 170 Glen Ellyn, Illinois 60137 CPPR - 171 Marble Hill Nuclear Generating Station - Units 1 and 2 Dea,r Mr. Keppler:

  • On May 27, 1981, Mr. T. D. Geib of Public Service Company of Indiana, Inc.

(PSI) notified your office of a potentially reportable item as required by 10 CFR 50.55(e). Westinghouse had determined that a single random fail-ure in the Volume Control Tank level control system, in the absence of operator action, could possibly lead to a loss of redundancy in the high head safety injection system. The scenario leading up to this event and

.A its potential consequences were described by Westinghouse in their letter (NS-TMA-2451, dated May 21, 1981) to the Director of the Office of Inspec-tion and Enforcement.

In this letter Westinghouse also recommended correcting this situation by assuring that plant procedures properly alert o;erators to take the appro-prince actions to assure an adequate water supply to the charging pumps.

Prior to fuel loading, PSI will review its plant procedures and make any changes necessary to implement this recommendation.

This letter is intended to fulfill the requirements of a final report as defined in 10 CFR SC.55(e).

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810e 30 027 / 3 P.O. Box 190. New Washington, Indiana 47162 812. 293.4441 L

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Pusuc SERVICE INOWWA .

Letter: James C. Keppler June 24, 19 81 S81-09 If you have any questions on this report, please feel free to contact me.

Sin erely, S. W. Shields

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-cc: / Director of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, D. C. 20555 t

E'. R. Schweibinz, P. E.

J. J. Harrison

  • bec: f4. M. Petro -

T. R. Burns L. O. Ramsett J. U. Bott J. R. Pope G. A. Troxell S. J. Brewer C. G. Beckham C. .

S. Togni S. K. Farlow R. H. Porter E. P. Martin i

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