TXX-6914, Interim Deficiency Rept CP-87-01 Re Error in Finite Element Computer Model for Safeguards Bldg.Initially Reported on 870114.Evaluation Continuing.Next Rept Will Be Submitted by 880118
| ML20236L632 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 11/03/1987 |
| From: | Counsil W TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| CP-87-01, CP-87-1, TXX-6914, NUDOCS 8711100487 | |
| Download: ML20236L632 (1) | |
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Log '# TXX-6914:
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-File # 10110
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909.2 Ref.# 10CFR50.55(e)-
s M#ELECTR/C.
William G. Counsli exu *, viv en we,,,-
Noyember 3, 1987 U. S. Nuclear Regulatory Commission Attn: Document Control Desk i
Washington, D. C.
20555 1
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SUBJECT:
COMANCHE PEAK' STEAM ELECTRIC STATION (CPSES)
'j DOCKET N05. 50-445 AND 50-446 l
STATIC COMPUTER MODEL FOR THE SAFEGUARDS BUILDING.
U SDAR:.CP-87-01 (INTERIM REPORT)
Gentlemen:
1 On January 14, 1987 we verbally notified your Mr. I. Barnes of a deficiency-involving _ an error in the finite element computer model for the Safeguards Building.
The error involves a fixed support point at the roof elevation where no such' support exists.- :This condition produces an incorrect. load distribution in the com3 uter model, which will require a reevaluation of the'~
l structural members in t1e building.
Our latest interim report, logged TXX-6701, was submitted on September 3,1987, We are continuing our evaluation of the impact'of this issue upon the. safety of plant operations. Our next report on this issue will be submitted no later 1
than January 18, 1988.
Very truly yours, 44 %
W. G. Counsil MCP/gj c - Mr. R. D. Martin, Region IV Resident Inspectors, CPSES (3) f' 8711100407 871103 PDR ADOCK 05000445 g
PDR 400 North Olive Street LB 8I Dallas, Texas 75201
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