ML16224A100

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Proposed Resolution of Generic Issue 143, Availability of Chilled Water System and Room Cooling
ML16224A100
Person / Time
Issue date: 08/11/1993
From: Wilkins J
Advisory Committee on Reactor Safeguards
To: Taylor J
NRC/EDO
References
D930811
Download: ML16224A100 (1)


Text

D930811 Mr. James M. Taylor Executive Director for Operations U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Dear Mr. Taylor:

SUBJECT:

PROPOSED RESOLUTION OF GENERIC ISSUE 143, "AVAILABILITY OF CHILLED WATER SYSTEM AND ROOM COOLING" During the 400th meeting of the Advisory Committee on Reactor Safeguards, August 5-6, 1993, we reviewed the NRC staff's proposed resolution of Generic Issue 143. During this meeting, we had the benefit of discussions with representatives of the NRC staff and its contractor, Pacific Northwest Laboratories. We also had the benefit of the documents referenced.

We agree with the staff's proposed resolution of Generic Issue 143.

Although GI-143 has been resolved, we believe that the licensees should review this issue as part of their IPEs. We are concerned, however, that there appears to be no process in place to ensure that the licensees have given appropriate attention to this matter.

We are also concerned about the large number of generic issues that have been dealt with in this manner, and we intend to address this matter in the near future.

Sincerely, J. Ernest Wilkins, Jr.

Chairman

References:

1. Memorandum dated July 8, 1993, for John T. Larkins, ACRS, from Warren Minners, NRC/RES, transmitting Draft NUREG-1427, "Regu-latory Analysis for the Resolution of Generic Issue 143, Availability of Chilled Water System and Room Cooling"
2. Pacific Northwest Laboratories Report, PNL-8750 (Draft),

"Assessment of Affected Core Damage Frequency and Public Risks Associated with Generic Issue 143 - Availability of HVAC and Chilled Water Systems," April 1993

3. ACRS letter dated October 15, 1987, to V. Stello, EDO, from W.

Kerr, ACRS Chairman,

Subject:

ACRS Comments on Nuclear Power Plant Air Cooling Systems