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) | |
Text
. __ - ___- - - ___
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 -
U N
\D o
}1 MAY I 61986 \\hl Mr. Eric H. Johnson, Director Division of Reactor Safety and Projects u
g
, L_
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. i I'
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, D K h0hN45 PDR - <
l W. G. Counsil l l
JCH/arh !
c - NRC Region IV (0 + 1 copy)
Director, Inspection & Enforcement (15 copies)
U.-S. Nuclear Regulatory Commission Washington, D.C. 20555
' ' " ~ ' " ~ " " " " " " ' " " " " ' ~ ~ ~ " 'gE27 u
%-5\
p
-.