TXX-4875, Interim Deficiency Rept CP-86-18 Re Difficulties in Starting & Operating Safety Chilled Water Chiller Units.Initially Reported on 860521.Alternative Solution Currently Being Evaluated by York Intl.Next Rept Due on 860724: Difference between revisions

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#REDIRECT [[TXX-4875, Forwards Senior Review team-approved Results Repts,Including Rev 1 to Isap I.a.3 Butt-Splice Qualification & Rev 1 to Isap VII.a.4, Audit Program & Auditor Qualification. Rev 2 to App E to Comanche Peak Program Plan Also Encl]]
{{Adams
| number = ML20206N853
| issue date = 06/26/1986
| title = Interim Deficiency Rept CP-86-18 Re Difficulties in Starting & Operating Safety Chilled Water Chiller Units.Initially Reported on 860521.Alternative Solution Currently Being Evaluated by York Intl.Next Rept Due on 860724
| author name = Counsil W
| author affiliation = TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
| addressee name = Johnson E
| addressee affiliation = NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
| docket = 05000445, 05000446
| license number =
| contact person =
| document report number = CP-86-18, TXX-4875, NUDOCS 8607010526
| document type = DEFICIENCY REPORTS (PER 10CFR50.55E & PART 21), TEXT-SAFETY REPORT
| page count = 1
}}
 
=Text=
{{#Wiki_filter:,
Log # TXX-4875 File # 10110 909.4 TEXAS UTILITIES GENERATING COMPANY NKYW AY TOWER. 400 NORTIE OLIVE frFREET. L.B. a R. DALLAS. TEXAN 78301 June 26, 1986
~
*M?L%ca?.12 M
7E Mr. Eric H. Johnson, Director U. S. Nuclear Regulatory Commission
[y Division of Reactor Safety and Projects 611 Ryan Plaza Drive, Suite 1000 Arlington, TX 76012
 
==SUBJECT:==
COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)
DOCKET NOS. 50-445 AND 50-446 SAFETY CHILLED WATER CHILLER UNITS SDAR: CP-86-18 (INTERIM REPORT)
 
==Dear Mr. Johnson:==
On May 21, 1986, we notified you that the issue involving difficulties in starting and operating the safety chilled water chiller units was reportable under the provisions of 10CFR50.55(e). The interim report logged TXX-4820, dated May 21, 1986, gave the corrective action as the installation of a by-pass line around the Component Cooling Water (CCW) heat exchanger. An alternative solution is currently being evaluated by York International which may be more cost effective than the originally proposed by-nass line.
An additional concern resulting from this issue is the possible effects of low CCW temperatures on the Reactor Coolant Pump (RCP) thermal barrier coolers.
Westinghouse Corporation has been asked to evaluate this concern.
The evaluations by York and Westinghouse are expected to be completed by the end of June, 1986. We are continuing our evaluation and anticipate submitting our next report by July 24, 1986.
Very truly yours, YhdY
" * '*t' ' g /
By_.
G. S. Keele Manager, N&c ear Li nsing JCH/arh c - NRC Region IV (0 + 1 Copy)
Director, Inspection & Enforcement (15 copies)
U. S. Nuclear Regulatory Commission Washington, D.C.
20555 R-C f re
!!!R7188!R 8t8886 ss-27 S
PDR 9
A DEYENION OF TEXAN UTILITIES ELECTRIC COMPANY
_ _ _ _ _ _ _ _ _ _ _. _. _ _ _ _. _. _ _ _}}

Latest revision as of 19:08, 23 May 2025

Interim Deficiency Rept CP-86-18 Re Difficulties in Starting & Operating Safety Chilled Water Chiller Units.Initially Reported on 860521.Alternative Solution Currently Being Evaluated by York Intl.Next Rept Due on 860724
ML20206N853
Person / Time
Site: Comanche Peak  Luminant icon.png
Issue date: 06/26/1986
From: Counsil W
TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To: Johnson E
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
CP-86-18, TXX-4875, NUDOCS 8607010526
Download: ML20206N853 (1)
v • d • e


Text

,

Log # TXX-4875 File # 10110 909.4 TEXAS UTILITIES GENERATING COMPANY NKYW AY TOWER. 400 NORTIE OLIVE frFREET. L.B. a R. DALLAS. TEXAN 78301 June 26, 1986

~

  • M?L%ca?.12 M

7E Mr. Eric H. Johnson, Director U. S. Nuclear Regulatory Commission

[y Division of Reactor Safety and Projects 611 Ryan Plaza Drive, Suite 1000 Arlington, TX 76012

SUBJECT:

COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)

DOCKET NOS. 50-445 AND 50-446 SAFETY CHILLED WATER CHILLER UNITS SDAR: CP-86-18 (INTERIM REPORT)

Dear Mr. Johnson:

On May 21, 1986, we notified you that the issue involving difficulties in starting and operating the safety chilled water chiller units was reportable under the provisions of 10CFR50.55(e). The interim report logged TXX-4820, dated May 21, 1986, gave the corrective action as the installation of a by-pass line around the Component Cooling Water (CCW) heat exchanger. An alternative solution is currently being evaluated by York International which may be more cost effective than the originally proposed by-nass line.

An additional concern resulting from this issue is the possible effects of low CCW temperatures on the Reactor Coolant Pump (RCP) thermal barrier coolers.

Westinghouse Corporation has been asked to evaluate this concern.

The evaluations by York and Westinghouse are expected to be completed by the end of June, 1986. We are continuing our evaluation and anticipate submitting our next report by July 24, 1986.

Very truly yours, YhdY

" * '*t' ' g /

By_.

G. S. Keele Manager, N&c ear Li nsing JCH/arh c - NRC Region IV (0 + 1 Copy)

Director, Inspection & Enforcement (15 copies)

U. S. Nuclear Regulatory Commission Washington, D.C.

20555 R-C f re

!!!R7188!R 8t8886 ss-27 S

PDR 9

A DEYENION OF TEXAN UTILITIES ELECTRIC COMPANY

_ _ _ _ _ _ _ _ _ _ _. _. _ _ _ _. _. _ _ _

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