TXX-4799, Final Part 21 & Deficiency Rept CP-86-26 Re Gibbs & Hill Safety Classification of Containment Spray Sys Recirculation Lines.Initially Reported on 860414.Classification Conforms to Reg Guide & Fsar.Item Not Reportable Per 10CFR50.55(e)
| ML20205P571 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 05/14/1986 |
| From: | Counsil W TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | Johnson E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| REF-PT21-86, REF-PT21-86-168-000 CP-86-26, PT21-86-168, PT21-86-168-000, TXX-4799, NUDOCS 8605210466 | |
| Download: ML20205P571 (1) | |
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Leg'# TXX-4799 File i 10110 906.5 TEXAS UTILITIES GENERATING COMPANY SKYWAY TOWER e 400 NORTH OR.IVE NTREET. I.D. e1 e DA11.AS. TEXAN TS301 May 14, 1986 03^5A?Afa'.S N
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}1 MAY I 61986 \\\\hl Mr. Eric H. Johnson, Director u
Division of Reactor Safety and Projects g
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U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 1000 Arlington, TX 76012
SUBJECT:
COMANCHE PEAK STEAM ELECTRIC STATION DOCKET NOS. 50-445 AND 50-446 CONTAINMENT SPRAY SYSTEM PIPING SDAR: CP-86-26 (FINAL REPORT)
Dear Mr. Johnson:
On April 14, 1986, we verbally notified.vour Mr. T. F. Westerman of a deficiency involving the safety classification of containment spray system recirculation lines. This evaluation is a result of a Part 21 notice provided to the NRC by Gibbs & Hill.
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Our evaluation has shown that the piping classification is in conformance with regulatory guidance and the CPSES FSAR. Gibbs & Hill had a concern that if the piping failed in a seismic event there was a possibility that the containment spray pumps could run out, overload their motors and trip.
'l Since this event is not a postulated failure applicable to CPSES, there is no applicable significant safety hazard.
However, we evaluated the effects of such a postulated passive failure and determined that the containment spray pumps would not run out We have concluded that this issue is not reportable under the provisions of 10CFR50.55(e). Records supporting this determination are available for your inspectors to review at the CPSES site.
Very truly yours, h0hN45 D
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W. G. Counsil JCH/arh c - NRC Region IV (0 + 1 copy)
Director, Inspection & Enforcement (15 copies)
U.-S. Nuclear Regulatory Commission Washington, D.C.
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