ML19261D816

Forwards Responses to Questions Re Inservice Insp Program Contained in NRC 790523 Ltr

ML19261D816
Person / Time
Site:	FitzPatrick
Issue date:	06/20/1979
From:	Early P POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK
To:	Ippolito T Office of Nuclear Reactor Regulation
References
JPN-79-34, NUDOCS 7906260445
Download: ML19261D816 (5)

Text

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POWER AUTHORITY OF THE STATE OF NEW YORK 10 CoLUMaus CIRCLE NEW YORK. N. Y.10019 (212) 397.6200 TRUSTEES GEORGE T. BERRY suscuTivE DaRECTom FREDERICK R. CLARK LEWIS R. BENNETT 4 AssisTANY E C t GECRGEL.INGALLS O'8 ECTO 8 vict cM AIRM AN JOSEPH R. SCHMIEDER

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ResERT L MILLONZ1 JOHN W BCSTON June 20, 1979  %"'E! a" Nar,o~s WILLI AM F. LUDDY jpg,79-34 THOMASF McCR ANN. JR.

co n v mou.c4 Director of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D. C. 20555 Attention: Mr. Thomas A. Ippolito, Chief Operating Reactors Branch No. 3 Division of Operating Reactors

Subject:

James A. FitzPatrick Nuclear Power Plant Docket No. 50-333 Inservice Inspection Program

Dear Sir:

Attached are the responses to the NRC questions on the JAFNPP Inservice Inspection Program which were forwarded by the NRC (T.A. Ippolito) letter to PASNY (G.T. Berry) dated May 23, 1979.

If we can be of further assistance, please advise.

Very truly yours, Paul J. Early Assistant Chief Engineer-Projects Att.

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JAMES A. FITZPATRICK NUCLEAR POWER PLANT Q. 1.3 "ote 3 of Table A - Pump test program on pages A-2 thru A-5 states pumps will be tested every 92 days instead of the code required testing each month during normal plant operations. This note is clearly in conflict with the intent of the code and its intent is not clear.

Will the pumps be spin tested every 31 days? What is the meaning of the statement, " Rolling the pump to lubri-cate the bearings and monitor flow or pressure indica-tions?" Does this mean only flow or pressure will be measured? What effect does this note have on the measure-ment of the required test parameters?

Response

The test frequency requirements for pumps listed in Table A are being modified as follows:

Pumps will be tested per Code requirements on a monthly basis, except Pumps that cannot be tested on a monthly basis

. will have specific reasons for requesting relief from Code requirements and will have specific "In Lieu of" testing identified, as agreed upon during the April 25 and 26, 1979, meeting with the NRC.

Q. 1.5 ':o te 5 of table A - pump test program on page A-4 does not meet the intent of the code. Provide de-tailed technical justification that supports the determination that measuring vibration amptitude on positive displacement pumps in accordance with the requirements of the code is impractical, and there are no alternatives available to meet the intent of the code.

Response: ,

Hote 5 of Table A, Page A-4, will be deleted and vibra-tion measurements per Code requirements will be made.

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Q. 3.3 What review of the definition of Category A valves is being referenced in note 2 on page C-3? The definition of a category A valve is specified in the code. -

Response

This statement will be deleted from the program sub-mittal. Valves that are Category A valves will be identified as such in Revision 2 of the submittal.

Q. 4.3 Following HPCI pump test, how is it determined that flapper returns to its seat?

Q. 4.4 *HPI Following HPCI pu:ap tes t , how is it deter-mined that flapper returns to its seat?

Response to Q.4.3 and Q.4.4  :

HPI-12 and HPI-65 are two check valves in series in the exhaust steam header of the HPCI turbine. Con-sequently, they are subject to low pressure (approx.

9 psig) and the chances of the flappers being stuck open are very remote. These valves have no position indicators. However, the Authority will verify that the flapper returns to its seat once a cycle as part of the leak test which is performed in accordance with Appendix J of 10CFR 50.

Q. 4.11 General--HPCI - Valves such as PNS 101A (F-2, PNS 101B (H-2) are in direct flow paths and are required to perform safety related function. Review this drawing for other valves similar to the two mentioned for pos-sible Category E classification.

Check valves HPI-402 & 403 (B-6) are not listed in the IST. Regrest explanation why these valves are not considered safety related. What could happen if one of the valves is stuck closed? .

Check valve VCW-15AU (6i), (D-8) in line frcm suppression pool to HPCI boost pump is not listed in IST. Why not?

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Response to Q. 4.11 Valves such as PNS 101A (F-2) and PNS 1013 (H-2) perform no safety-related function, since the condensate storage tanks are not an essential source of water for the HPCI pump.

Vacuum breaker valves HPI-402 and HPI-403 have been added to the ISI Program.

Check valve VCW-15AN (HPI-61) at D-8 has been added to the ISI Program. However, due to cleanliness requirements of the reactor coolant system when testing, this valve is not in the desired suction path. Consequently, the following test will be performed in lieu of the required Section (I test. During each Operating Cycle, the valve will either be dis-assembled or during the HPCI pump test conducted on the approach to cold shutdown for refueling, the valve will be cycled.

Q.4 15 General--Core Spray - What is the function of the loop containing check valve? VCS-6 0 E- ( 7 6 B ) , Co-ordinate E-1.

Are the two Core Spray Loops completely redundant?

What is the tech. spec. requirenant for plart operation with only one Core Spray loop operational?

Response

The functions of that loop were to keep the Core Spray system piping full of water to prevent water hammer problems and to provide initial fill water. Since the installation of the holding pumps (at G-6 and I-6),

the loop's function is only ro provide initial system fill water.

Each Core Spray Lcop supplies 100's of the required flow. With one loop out of service, the plant may continue operation for 7 days providing that all active components of the remaining loop are operable.

Q.4.28 General--Service riater - Are the emergency service water pumps required to supply other systems shown on ll8 2 5-F'4-4 6 A besides the Diesel Jackets? If so, review drawing for oth_. valves that may be considered related.

Response

All safety-related functions provided by the Emergency Service Water Pumps have been reviewed and are included in the ISI Program.

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Q. 4.38 Valves on page 2 and page 3 of Table 1 - The submittal indicates that these valves will not be tested because emergency service water will not be supplied to the reactor building Slosed loop cooling system per tech.

spec. What alternatives have been considered for exer-cising and evaluating the operating performance of these valves?

Response

The following tests shall be performed in lieu of the required Section XI test. Each operating cycle (normally refueling outage) a sample of valves will be selected and tested to verify proper operation. This test will involve valve disassembly to assure flapper is free to operate until such time that other test methods become available, or are devised. A total of 16 valves are involved of which 4 are swing check and 12 are piston check models. The test ample will be 1 swing check and 3 piston check valves and if any are found inoperable, the remaining valves of that model will be tested.

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