ML20071G139

/04X-1 on 781006:3rd Quarter Release of Halogens & Particulates Greater than Tech Specs.Caused by Steam Leaks & Fuel Pin Clad Performance

ML20071G139
Person / Time
Site:	FitzPatrick
Issue date:	12/18/1978
From:	W. Verne Childs POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK
To:
Shared Package
ML20071G136	List: ML20071G132 ML20071G139
References
LER-78-085-04X, LER-78-85-4X, NUDOCS 7812220100
Download: ML20071G139 (2)

Text

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," ' ATTACHMENT TO LER78-0S'/04X-1 5 Page 1 of 1 The report level specified by Technical Specification, Appendix B, Paragraph 2.3.B.3 was exceeded for the third quarter of the calendar year. The average release rate of Halogens and Particulates with a half-life greater than eight (8) l days was 10.75*6 o.f specification 2.3.B.2 which is 2.75*6 above the required corrective action level specified in 2.3.B.4. The average release rates for each month of i the quarter are tabulated below: '

i Halogens and Particulates T 1/2>8 Days Release Rate Release Rate in % of July 1978 Ci/Sec Instantaneous Limit Qs Fit: Patrick 5.1 X 10 -10 0.02 Qs NMP 3.7 X 10 0.16 Qy Fit: Patrick 8.0 X 10- 9 9.01 9.19 i August 1978 Qs Fit: Patrick 2.6 X 10, 0.01  ;

Qs NMP 4.6 X 10_ g 0.20 Qv Fit

Patrick 3.2 X 10 3.62 l 3.83 September 1978 Qs Fit: Patrick < 2.6 X 10- < 0.01 Qs NMP 3.2 X 10 -8 0. M

Qv Fit

Patrick 1.7 X 10 19.39 19.53 The high relase rates during the month of July were the result of a number [

of steam leaks and some fuel pin clad performation. These conditions resulted in

+

significant increase in the Qv factor during the following scheduled control rod sequence exchange. A number of steam leaks were repaired and ventilation filters were replaced in an effort to reduce the release rate as evidenced by the August Qv factor. During September, one scram,several steam leaks, and the scheduled

( shutdown for refueling and the disassembly of equipment again resulted in a significant increase in the Qv factor.

In addition to refueling, which will reduce the number of fuel pins with

perforated cladding, repair of most of the steam leaks and several leaks in the off gas recombiner system are expeced to further reduce the absolute value of the Qv factor.

I The location of approximately 99'. of the release was from the turbine and reactor building ventilation systems to the atmosphere.

LER 78-051/041-0 is a related event.

1 i NOTE: Revision 1 of this LER is submitted to correct the Technical Specification I

paragraph numbers referenced above and to note that the release was above i

the " corrective action" level rather than " report" level. Items 9 and 17 l are also changed to indicate submission of this revision.

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