ML20042A568

RO 82-009:on 820305,nitrogen Pressure in Boron Injection Tank Observed Below 90 Psig.Caused by Failure of Two Nitrogen Pressure Regulator Valves.Procedure Changed.Also Reported Per Part 21

ML20042A568
Person / Time
Site:	Indian Point
Issue date:	03/08/1982
From:	Christopher Jackson CONSOLIDATED EDISON CO. OF NEW YORK, INC.
To:	Haynes R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
REF-PT21-82 RO-82-009, RO-82-9, NUDOCS 8203230565
Download: ML20042A568 (1)

Text

,

Ch:rt:s C. J:ck v ce P+c t +1 l

x ConsoPdaNd Ed son Conwy of No sYo t Mr trid.an Pomt Smon B>oadway & B4 3 ;ey A,e Dorian, N Y 105t 1 Te:epone t91417374t m March 8, 1982 Re: ian Point Unit No. 2 sDocket'do}x50-247

\/

< ;' ^ /N -

Mr. Ronald C. Haynes, Regional Administrator x)

')

Region I 7 U.S. Nuclear Regulatory Commission J' ,n) ',

631 Park Avenue  ; > "-

King of Prussia, Pennsylvania 19406 i~t . n

-> ^ ' u; ,-

Dear Mr. Haynes:

1. )u , < -

ff, .

In accordance with the Technical Specifications . FL (y Operating License No. DPR-26, the following confirms notification on March 5, 1982 to Mr. Ted Rebelowski of your office, by Mr. John Basile of Consolidated Edison of a potential Reportable Occurrence LER-82-009. This event is the type defined in Technical Specification, Section 6.9.1.7.1.1.

On March 5,1982 at about 0730 nitrogen pressure in the boron injection tank was observed below the required 90 psig. Two nitrogen pressure regulator valves had failed allowing the nitrogen pressure to drop. Immediate corrective action was taken to raise and maintain the pressure by an operator regulating a manual valve.

Based upon a review of the relationship between nitrogen pressure and a volume of boric acid solution, it was determined that the reduction of nitrogen pressure was reportable. For additional corrective action, a procedure was changed to require minimum pressure of 78 psig for a maximum of 1880 gallons of boric acid solution, one nitrogen pressure regulator valve was replaced on March 6, and work is in progress to replace the second valve.

Consolidated Edison believes that this report also satisfies the requirements of 10 CFR Part 21.

Very truly yours, '

['l 4

'ff cc: Mr. William Mcdonald, Director (2 copies)

Office of Management Information and.

Program Control c/o Distribution Services Branch, DDC,'ADM U.S. Nuclear Regulatory Commission i5 Washington, D.C. 20555 Mr. T. Rebelowski, Senior Resident Inspector U.S. Nuclear Regulatory Commission P.O. Box 28 Buchanan, New York 10511 8203230565 820308 PDR ADOCK 05000247 S PDR g9 Qd .