JPN-92-048, Updates 801104 Response to NRC Bulletin 80-11, Masonry Wall Design. of 83 safety-related Wall Sections Listed in Field surveys,18 Did Not Have Hardware Cloth.All Wall Sections Listed in Bulletin Meet Acceptance Criteria

Updates 801104 Response to NRC Bulletin 80-11, Masonry Wall Design. of 83 safety-related Wall Sections Listed in Field surveys,18 Did Not Have Hardware Cloth.All Wall Sections Listed in Bulletin Meet Acceptance Criteria

ML20105B123
Person / Time
Site:	FitzPatrick
Issue date:	09/10/1992
From:	Ralph Beedle POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
IEB-80-11, JPN-92-048, JPN-92-48, NUDOCS 9209180188
Download: ML20105B123 (2)

Text

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September 10.1992 JPN-92-048 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Mail Stop P1-137 Washington, D.C. 20555

Subject:

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

!)Rdsted Response tatlRC Bulletin 8011" Masonry Wall Desian"

References:

1. NRC I&E Bulletin No. 80-11, " Masonry Walt Design," dated May 8,1980.

2. NYPA letter, R. J. Pastemak to B. H.. Grier (JAFP 80-856) dated November 4,1980, "NRC l&E Bulletin 80 Masonry Wall Design."

3. NRC letter, D. B. Vasallo to J. P. Bayne, "lE Bulletin 80-11, Masonry Wall Decign," dated September 17,1984.

The Authority has recently discovered that information provided as part of the Bulletin 30-11 180 days response (Reference 2) requires update. The NRC

- reviewed the Authority's submittal and associated requests for additional :_

inft .ation and issued a Safety Evaluation (Reference 3) approving the Authority's response to Reference 1. The new information does not alter the results of the Authority's analysis nor does it affect the conclusions of the NRC Safety Evaluation.

Reference 2, Section 5.d, " Configuration of Walls, " stated that "In general, all walls have a continuous layer of metal hardware cloth on top of the first course and in every third succeeding course." Contrary to this statement, no hardware cloth was found when removing a 36" masonry wallin front of 10MOV-17 at the 272' elevation in the Reactor Building.

As a result of this finding, the Authority reviewed the original field surveys conducted to respond to Bulletin 80-11. Of the 83 safety related wall sections listed in the survey,18 did not have hardware cloth. Five of the 65 sections with hardware cloth did not match the description contained in Reference 2: three had hardware cloth on top of the first arid in every second succeeding course and two had hardware cloth on top of the first and in every sixth succeeding course. The t

results of the Bulletin 80-11 analyses are not affected by the absence of hardware y a 0 0 31cioth or hardware ciotn instaiied differentiy than eescribed in Reference 2. The i

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Bulletin 8011 analyses assumed that masont f block walls are not reinforced with hardware cloth. This is a conservative approach since the addition of reinforcement increases lhe strength of the walls. All of the safety related wall sections listed in the survey meet the acceptance criteria of the Bulletin 80-11 re-evaluation.

If you have any questions, please contact Mr. J. A. Gray, Jr.

Very truly yours,

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'kRalph R? LpLck Q,. .

ETBoodle -

cc: Regional Adminitfrator U.S. Nuclear Ragulator, 'ommission -

475 Allendale Roa:2 King of Prussia, PA 19400 Office of the Resident inspector U.S. Nuclear Regulatory Commission P.O. Box 130 Lycoming, New York 13093 Mr. Brian C. McCabo Project Directorate 1 1 Division of Reactor Projects 1/11 U.S. Nuclear Regulatory Commission _

Washington, D.C. 20555

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