ML19309H544

LER 80-032/04L-0:on 800408,during First Quarter of 1980, Release of Halogens & Particulates w/half-lives of Greater than Eight Days Exceeded Ets.Caused by Packing Leak in RHR Sys.Tightened Packing as Temporary Corrective Action

ML19309H544
Person / Time
Site:	FitzPatrick
Issue date:	05/08/1980
From:	W. Verne Childs POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19309H542	List: ML19309H541 ML19309H544
References
LER-80-032-04L, LER-80-32-4L, NUDOCS 8005130480
Download: ML19309H544 (2)

Text

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EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h 10121 l Durina the first calendar cuarter of 1980. the release of halogens and I IoI3l l particulates with half-lives of greater than eicht days was 4.93% of ETS 1 lo l411 2.3.B.2. ETS 2.3.B.5 recuires a repert when release is creater than h.02 of ETS I i l o 151 1 2.3.B.2. No sianificant ha;'ard existed. See attachment for details. I lo is i l I I

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l i l a l l A cacking leak in RHR System was crimary cause. Tiahtened oackina as temocracy I li li i i corrective action. Reoackina will be completed durino the current refuel outage. I

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POWER AUTHORITY OF THE STATE OF NEW YORK JAMES A. FITZPATRICK NUCLEAR POWER PLAfT DOCKET NO.50-333 ATTACHMENT TO LER 80-032/04L-0 Page 1 of I During the first quarter of 1980, the average release rate of halogens and particulates with half-lives greater than eight days was 4.93% of Environmental Technical Specifications Paragraph 2.3.B.2.

Paragraph 2.3.B.5 requires a report when the release rate averaged over a calendar quarter exceeds 4.0% of paragraph 2.3.B.2.

Tabulated below is a summary of the release rates for the three release points of concern during the first quarter of 1980. The values shown are in percent of the exoression shown in paragraph 2 3.B.2:

JAF STACK NMP-1 STACK JAF JENTS TOTAL January 0.0065 0.0235 3.34 3 37 February 0.102 0.068 10.23 10.40 March 0.0057 0.054 1 30 1.36 quarterly Average 4.93 As indicated in the table above, the major contributor was from the JAF vents during the month of February. Between February 12 and February 14, 1980, a higher than normal release rate from the reactor building vent was detected. In order to reduce this release rate, the Standby Gas Treatment was placed in service so that the reactor building ventilation could be routed to the plants main stack via the high efficiency and charcoal filters which are a part of the Standby Gas Treatment System. An investigation into the source of the higher than normal release rate was initiated and this investigation revealed a packing leak in the RHR System. The packing was tightened and ventilation system from the reactor building returned to normal. Addi tional moni toring of the release rate confirmed that the valve on which the packing was tightened was the primary contributor.

With respect to permanent corrective action, the valve packing which was tightened during February will be repacked during the current Refueling Outage.

No additional corrective action will be required. The event did not represent a significant hazard to the public health and safety.

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