ML20197H962

Forwards SER & SALP Input Re Util 830427 Response to Generic Ltr 82-28, Inadequate Core Cooling Instrumentation Sys. Proposed Approach to Westinghouse Reactor Vessel Level Instrumentation Sys Acceptable

ML20197H962
Person / Time
Site:	Diablo Canyon
Issue date:	08/03/1984
From:	Rubenstein L Office of Nuclear Reactor Regulation
To:	Novak T Office of Nuclear Reactor Regulation
Shared Package
ML20197F919	List: IA-86-489, Responds to FOIA Request.Forwards SALP Input for Following Cycles:Jul 1979 - Dec 1980,Jul 1981 - Dec 1982 & Jan 1983 - June 1984.Documents Also Available in PDR ML20197F915 ML20197F922 ML20197G397 ML20197H962 ML20197J013 ML20197J091 ML20197J099 ML20197J112 ML20197J128 ML20211Q945 ML20211R010
References
FOIA-86-489, RTR-NUREG-0737, RTR-NUREG-737, TASK-2.F.2, TASK-TM GL-82-28, NUDOCS 8408130036
Download: ML20197H962 (4)

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AUG 3 1934 MEP.0RANDUM FOR: T. M. Novak, Assistant Director ,

for Licensing, DL F R3e. : L. S. RubEnstein, Assistant Dire: tor for Core and Plant Systeas, DSI SU3 JECT: EVALUATION OF FACIFIC GAS AND ELECTRIC C0 9ANY FP.0 POSED INADEQUATE CORE COOLING INSTRL".ENTATION SYSTEM FOR DIASLO CANYON NUCLEAR POWER PLANT, UNIT 1 Plant-Name: Diablo Canyon NJclear Pcwer Plant, Unit 1

• Docket Number: 50-275 TACS Number: 54435 NSSS Epplier: Westinghouse Licensing Stage: OR Responsible Branch: LB #3 Project Manager: Hans Schierling Review Status: Incmpl ete i The Core Perfomance Branch has reviewed the licensee's April 27, 1983 response to the NRC Deceber 10, 1982 Generic Letter No. 82-28, " Inadequate Co e Cooling Instrumentation (ICCI) System," and has found that the licensee's proposed approach to the Westinghouse Reactor Vessel Level Instrumentation System (RVLIS) is acceptable. However, our implementation review is incomplete. We will

require the licensee to provide the implementation letter report described in Enclosure 2 in order that the staff can complete its impler.entation review of 1

the installed RVLIS.

The enclosed SER including input from ICSB and ORNL presents the results of our review. The SER also identifies some concerns relating to the proposed ICCI System, and requests additional infor.r.ation relative to confor,ance of same cmponents of the ICCI systs to NUREG-0737 design requirccents.

Please forward the enclosed evaluation report to the licensee and request that Pacific Gas and Electric Company initiate necessary actions to implement its ICCI system and that a schedule for additional sub-ittals, including respr.nse to Enclosures 1 and 2, t>e provided within 30 days.

Contact:

T. Huang, CPS:DSI X-27064 N

24d8I 3 oo a(l* - - -

AUG 3 1994 j

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/ A SALP review is provided in Enclosure 3. .

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L Q.u4 S sq CA < -

L. S. Ruanstein, Assistant Director for Core and Plant Systeas, DSI

Enclosures:

As stated cc: D/DSI D. Eisenhut G. Knighton B. Sheron F. Rosa J. Shea H. Schierling D. Ziemann

• V. Poore H. Li e

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i-ENCLOSURE 3 DIABLO CANYON UNIT 1 SALP INPUT FRGi THE CORE PERFORMAt;CE BRAtiCH FOR THE RESPONSE TO G.L. 82-28

" INSTRUMENTATION FOR DETECTION OF INADEQUATE CORE COOLING" a

A. Licensing Activities 1

1. Management Involvement in Assuring Quality.

Decision making generally at a level that ensures excellent

! management review on the reactor inventory tracking system.

1 Ra ting: Category 1 .

2. Approach to Resolution of Technical Issues from a Safety Standpoint.

Adequate approach to resolve ICC issues.

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! Ra ting : Ca tegory 2 i

3. Responsive to NRC Initiatives.

Response gene ally adequate.

I

Ra ting

Categorv 2 1

4. Sta f fing (including Panagenent) .

No ba si s for ra ting .

l S. Reporting and Analysis of Reporteble Events.

No reparta Die event hes been b-cujht to our a ttention .

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6. Training and Qualification Effectiveness. 1 No basis'fo ra ting.

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7. Ov.erall Pating for Licensing Act!vity functicnal A ea.

Adequa te .

Ra ting : Ca tegory 2 e