ML20055H358

Advises That Util Provided Acceptable Resolution to NRC Bulletin 89-001, Failure of Westinghouse Steam Generator Tube Mechanical Plugs

ML20055H358
Person / Time
Site:	Hatch
Issue date:	07/23/1990
From:	Vissing G Office of Nuclear Reactor Regulation
To:	Mroczka E CONNECTICUT YANKEE ATOMIC POWER CO.
References
IEB-89-001, IEB-89-1, TAC-75240, NUDOCS 9007260098
Download: ML20055H358 (2)

Text

. ._ ,

i July 23, 1990 f' Qocket No. 50-366 i

Mr. Edward J. Mroczka Senior Vice President t Nuclear Engineering and Operations Connecticut Yankee Atomic Fower Company ,

Energy Company i NortheastNuclear!

P.O. Bcx 270 Hartford,Connectjcut 06141-0270  ;

Dear Mr. Mroczka:

j

SUBJECT:

CLOSE00T OF BULLETIN 89-01 REGARDING WESTINGHOUSE STEAM  !

' GENERATOR PLUGS-MILLSTONE NUCLEAR POWER STATION, UNIT 2 l

(TACNo.75240)-

Bulletin 89-01, " Failure of Westinghouse Steam Generator Tube Mechanical  ;

Plugs," requested PWR licensees to determine whether certain mechanical '

plugs supp!ied by Westinghouse are installed in their steam generators, I and if so that specified actions be taken.

4 We have reviewed your letters dated June 16, July 12, and August 30, 1989, t in which you have indicated that all of the suspected defective mechanical plugs supplied by Westinghouse that were installed in.the Millstone 2 steam generctors were repaired during the refueling outage for Cycle 10 operation l and during the mid-cycle steam generator inspection outage in October 1989.

This provides an acceptable resolution to this issue. ,

Sincerely, +

/s/ ,

Guy S. Vissing, Senior Project Manager Project Directorate I-4 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation cc: See next page DISTRIBUTION JIN4hRC & Local PORs LEngle '

Flant File

!.Varga(14E4)  ;

'd. Boger (14A2) t S. Norris ProjectManager t OGC(forinformationonly)

E. Jordan (MNBB3302)

ACRS(10)-

E.Wenzinger(RegionI)  :

ing:cp J 0/$/90 /$//90 07/p90 .,

DOCUMENT.NAME: MROCZKA LETTER

• 1"

- rv a

• 9007260098 900723 PDR ADOCK 03000366 'b Fo i

.- . ?? . .- . . . .

t

, n .

l .

Mr. Edward J. Mroczka Millstone Nuclear Power Station '

Northeast Nuclear Energy Company Unit No. 2 CC*  !

l Gerald Garfield, Esquire R. M. Kacich, Manager i Day, Berry and Howard Generation Facilit'es Licensing  :

l Counselors at Law Northeast Utilities Service Company City Place Post Office Box 270 Hartford, Connecticut 06103-3499 Hartford, Connecticut 06141-0270

• W. D. Romberg, Vice President D. O. N0rdquist Nuclear Operations Director of Quality Services Northeast Utilities Service Company Northeast Utilities Service Company Post Office Box 270 Post Office Box 270 ,

Hartford, Connecticut 06141-0270 Hartford, Connecticut 06141-0270 Kevin McCarthy, Director Regional Administrator ,

Radiation Control Unit Region I  !

Department of Environmental Protection U. S. Nuclear Regulatory Commission State Office Building 475 Allendale Road Hartford, Connecticut 06106 King of Prussia, Pennsylvania 19406 Bradford S. Chase, Under Secretary First Selectmen  ;

Energy Division Town of Waterford Office of Policy and Management Hall of Records 80 Washington Street 200 Boston Post Road Hartford, Connecticut 06106 Waterford, Connecticut 06385 S. E. L ee, Nuclear Station Director W. J. Raymond, Resident Inspector Millstone Nuclear Power Station Millstone Nuclear Power Station Northeast Nuclear Energy Company c/o U. S. Nuclear Regulatory Commission l Post Office Box 128 Post Office Box 811 i Waterford, Connecticut 06385 Niantic, Connecticut 06357 ~

J. S. Keenan, Nuclear Unit Director Charles Brinkman, Manager Millstone Unit No. 2 Washington Nuclear Operations Northeast Nuclear Energy Company C-E Power Systems Post Office Box 128 Combustion Engineering, Inc.

Waterford. Connecticut 06385 12300 Twinbrook Pkwy l

Suite 330 j Rockville, Maryland 20852 l -

l

., - - , - . - . - . .-.+,,,y- - ,... .%,s.,,

. . , . _ . . . . _ , - - --