ML20244C441

Amend 117 to License DPR-61,revising one-time Relaxation of Containment Integrity Tech Specs to Allow Cleaning or Replacement of Containment Air Reciculation Fan Motor HXs While at Power

ML20244C441
Person / Time
Site:	Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date:	06/01/1989
From:	Boger B Office of Nuclear Reactor Regulation
To:
Shared Package
ML20244C439	List: ML20244C436 ML20244C441 ML20244C445
References
NUDOCS 8906140311
Download: ML20244C441 (5)

Text

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?, terJITED STATES y .- g NUCLE AR REGULATORY COMMISSION f)jy f] ;

.;,s, wassiuctou. o. c. 20sst CONNECTICUT YANKEE ATOMIC POWER COMPANY DOCKET NO. 50-213 HADDAM NECK PLANT AMENDMENT TO FACILITY OPERATING LICENSE Amendment No.117 License Nc. DPR-61

1. The Nuclear Regulatory Comission (the Comission) has found that:

A. The application for amendment by Connecticut Yankee Atomic Power (thelicensee),datedMarch 31, 1989 as supplemented Nay 25, 1989, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Comission's rules and regulations set forth in 10 CFR Chapter I; B. The fscility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Comission; C. There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Comission's regulations; D. The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the pubitc; and E. The issuance of this amendment is in accordance with 10 CFR Part 51 of the Comission's regulations and all applicable requirements have been satisfied.

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2. Accordingly, the license is amended by changes to the Technical Specifications as indicated in the attachment to this license amendment, and' paragraph 2.C.(2) of Facility Operating License No. DPR-61 is hereby amended to read as follows:

(2) Technical Specifications The Technical Specifications contained in Appendix A, as revised through Amendment No.117 , are 'hert.by incorporated 19 the license.

The licensee shall operate the facility in accordance with the Technical Specifications.

3. This license amendment is effective as of the date of issuance.

FOR THE NUCLEAR REGULATORY COMMISSION y a.

Bruce A. Boger, Assistant Director for Region I Reactors.

Division of Reactor Projects I/II Office of Nuclear Reactor Regulation

Attachment:

Changes to the Technical Specifications ,

Date of Issuance: June 1, 1989

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'* ATTACliMLNT TO LICENSE AMENDKENT tJ0. 117 FACILITV OPERATING LICENSE NO. DPR-61 DOCKET NO. 50-233 i i

' Replace the' following pages of the Appenoix "A" Technical Specifications with l the enclosed pages. The revised pages are identified by amendment number and contain vertical lines indicating the areas of change.  ;

Remove Insert r ::

3-18 3-18 3-20e 3-20a 1

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e-3.11 CONTAINMENT Aeolicability: Applies to the operating status of reactor containment.

Ob.iective: To insure containment integrity.

Specification: A. Leakaae The reactor shali' not be critical if the containment leakage exceeds 0.25 weight percent of the contained air per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> when extrapolated to 40 psig in accordance with Surveillance Standard 4.4.

B. Containment Intearity*

(1) Containment integrity shall be maintained whenever reactor coolant system is cbove 300 psig and 200*F. The shutdown margin shall be greater than 2600 pcm when the containment is open.

(2) Containment integrity shall not be violated when the reactor vessel head is removed unless the reactor coolant system is borated to the refuel-ing boron concentration.

(3) Positive reactivity changes shall not be made by rod drive motion or boron dilution whenever the containment integrity is not intact.

C. httgnal Pressure The reattor shall not be critical if the containment internal pressure exceeds 3 psig, or the internal vacuum exceeds 2.0 psig.

D. Air Recirculation System Three of the four air recirculation units shall be operable whenever the reactor is critical.

• The service water piping (containment boundary) for each CAR fan heat exchanger may be opened for up to 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> at a time to install or remove blank flanges. During this time compensatory measures will be taken. If contain-ment integrity is not restored within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, be in HOT STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. The service water piping for each CAR fan moter heat exchanger may be opened for up to 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> at a time to install or remove piping caps. During this time compensatory measures will be taken. If containment integrity is not restored within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />, be in HOT STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the

}' following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. The cumulative time for the service water piping to be open shall not exceed 64 hours7.407407e-4 days <br />0.0178 hours <br />1.058201e-4 weeks <br />2.4352e-5 months <br />. The four CAR fan heat exchangers and the four CAR fan motor heat exchangers may be cleaned / replaced only once during Cycle 15 under this specification.

3-18 AmendmentNo.142 117

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Containment purge is utilized as a backup means of venting hydrogen from the containment following a loss-of-coolant accident. The containment air particulate monitoring system provides the primary means~ of purging because it provides adequate purge flow to- prevent an explosive mixture buildup while allowing fine control of the release of radioactivity during purges. When necessary to effect ,

repairs.to the containment purge or purge bypass isolation valves, a blank flange must be applied to the 42" purge air exhaust penetration inside the reactor containment so that the containment remains leak tight. This renders the-purge system inoperable for a finite time. Seven days is  ;

considered a reasonable length of time for repair parts to be received, installed and the system retested for leak tightness and returned to service.

The OPERABILITY of the containment isolation valves ensures that the containment atmosphere will be isolated from the outside environment in the event of a release of radioactive material to the containment atmosphere or pressurization of the containment. Containment isolation  ;

ensures that the release of radioactive material to the '

environment will be consistent with the assumptions used in the analyses for a LOCA.

The specification to allow containment integrity to be relaxed is necessary to allow cleaning or replacing of the l CAR fan heat exchangers and the CAR fan motor coolers. l This specification is only valid prior to the Cycle 15 Refueling Outage.

References:

(1) FDSA Section 3.6 (2) D. C. Switzer (CYAPCO) letter to A. Schwencer (NRC), dated June 27, 1977, Attachment No. 2.

(3) E. J. Mrotzka letter to NRC, dated February 10, 1989.

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l 3-20a Amendment No. lA2 117 ]

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