ML20209A970

Forwards SER Re Review of Protection Sys Mods for N-1 Loop Operation.Ser Contains Six Open Items Which Must Be Resolved Before Staff Completes Review.List of Drawing Errors Encountered During Review of Design Details Encl

ML20209A970
Person / Time
Site:	Millstone
Issue date:	01/21/1987
From:	Doolittle E Office of Nuclear Reactor Regulation
To:	Mroczka E NORTHEAST NUCLEAR ENERGY CO.
Shared Package
ML20209A975	List: ML20209A970 ML20209A987
References
NUDOCS 8702030491
Download: ML20209A970 (3)

Text

F c- , , JAN 211987 Docket No.: 50-423 Mr. E. J. Mroczka Senior Vice President Nuclear Engineering and Operations Northeast Nuclear Energy Company Post Office Box 270 Hartford, Connecticut 06141-0270

SUBJECT:

SAFETY EVAI.UATION REPORT FOR MII.I. STONE NUCl. EAR POWER STATION UNIT NO. 3, N-1 1.00P OPERATION ( l.ICENSE CONDITION 2.C(4))

The staff is continuing its review of information submitted by you in support of your request for approval to operate with N-11. oops. Attached is our safety evaluation of protection system modifications for N-1 l.oop operation.

This evaluation contains 6 open items which must be resolved before the staff completes its review. Also attached, is a list of drawing errors encountered during our review of the design details for the reactor coolant system loop isolation valve interlocks. These errors should be corrected in a subsequent FSAR amendment.

Third, a list of of information needed to complete the supporting human factors engineering review is attached.

This information supplments previous evaluations contained in SER Section 4.4.7 and SSER 4 Sections 4.4.7 and 15.10. Additionally, we will forward the reactor systems safety evaluation and any related requests for-information when completed.

Please provide your responses to these requests for information or request additional time to provide your responses within 30 days of the date of this letter. The staff plans to complete its review of your responses within 30 days from the date of receipt of all the requested information.

If you have further questions, please contact me at (301) 492-8379.

Sincerely, l /r/ ~

Elizabeth I., Doolittle, Project Manager PWR Project Directorate No. 5 i Division of PWR I.icensing-A

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%,+...+/ JAN 2137 Docket No.: 50-423 Mr. E. J. Mroczka Senior Vice President Nuclear Engineering and Operations Northeast Nuclear Energy Company Post Office Box 270 Hartford, Connecticut 06141-0270 -

SUBJECT:

SAFETY EVAI.UATION REPORT FOR Mll.I. STONE NUCI. EAR POWER STATION UNIT N0. 3, ri-1 1.00P OPERATION ( l.ICENSE CONDITION 2.C(d))

The staff is continuing its review of information submitted by you in support of your request for approval to operate with N-11. oops. Attached is our safety evaluation of protection system modifications for N-1 f. cop operation.

This evaluation contains 6 open items which must be resolved before the staff completes its review. Also attached, is a list of drawing errors encountered durino our review of the desian details for the reactor coolant system loor isolation valve interlocks. These errors should be corrected in a subsequent FSAP amendment.

Third, a list of of information needed to complete the supportinc human factors engineerina review is attached.

This information supplments previous evaluations contained in SER Section 4.4.7 and SSER 4 Sections 4.4.7 and 15.10. Additionally, we will forward the reactor systems safety evaluation and any related reouests for information when completed.

Please provide your responses to these reouests for information or reauest additional time to provide your responses within 30 days of the date of this letter. The staff plans to complete its review of your responses within 30 '

days from the date of receipt of all the reouested information.

i If you have further questions, please contact me at (301) 492-8379.

Sincerely,

Elizat's I., Doolittle, Prciect Manager l PWR Project Directorate No. 5 j Division of PWP l.icensing A

Mr. J. F. Opeka Millstone Nuclear Power Station Northeast Nuclear Energy Company Unit No. 3 cc:

Gerald Garfield, Esq. ' Ms. Jane Spector Day, Berry & Howard Federal Energy Regulatory Comission City Place 825 N. Capitol Street, NE Hartford, Connecticut 06103-3499 Room 8608C Washington, D.C. 20426 Mr. Maurice R. Scully, Executive Director Mr. Kevin McCarthy, Director Connecticut Municipal Electric Radiation Control Unit Energy Cooperative Department of Environmental Protection 268 Thomas Road .

State Office Building Groton, Connecticut 06340 Hartford, Connecticut 06115 Robert W. Bishop Esq.

Corporate Secretary Northeast Utilities Post Office Box 270 Hartford, Connecticut 06141 Thomas Shediosky Senior Resident Inspector Office U. S. Nuclear Regulatory Commission Millstone III P. O. Box 811 Niantic, Connecticut 06357-08 Mr. Michael L. Jones, Manager Project Management Department Massachusetts Municipal Wholesale Electric Company Post Office Box 426 1.udlow, Massachusetts 01056 Regional Administrator U. S. NRC, Region I l 631 Park Avenue l King of Prussia, Pennsylvania 19406 -

Mr. Karl Abraham Public Affairs Office, Region I U. S. Nuclear Regulatory Comission, King of Prussia, Pennsylvania 19406 l

l

. I Mll.l. STONE NUCLEAR POWER STATION, UNIT 3 l i

i NORTPEAST NUCl. EAR ENFRGY COMPANY l

DOCKET NO, 50-423 N-1 1.00P OPERATION (l.ICENSE CONDITION 2 C(4))

ATTACHMENTS

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