ML20147B545

Supplemental Deficiency Rept CP-86-18 Re Difficulties in Starting & Operating Safety Chilled Water Chiller Units. Initially Reported on 860521.Unit 1 Completed by 880226. Completion of Corrective Action for Unit 1 Rescheduled

ML20147B545
Person / Time
Site:	Comanche Peak
Issue date:	02/26/1988
From:	Counsil W, Walker R TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
CP-86-18, TXX-88267, NUDOCS 8803020116
Download: ML20147B545 (1)

Text

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MEE Log # TXX-88267 C-File # 10110 r

r 909.4

('I 1UELECTRIC February 26, 1988 wn.. c. cm,mn Execuent Ykr Pressdent U. S. Nuclear Regulatory Connission (CPSES)

Attn: Document-Control Desk Washington, D. C.

20555-

SUBJECT:

COMANCHE PEAK STEAM ELECTRIC STATION l

. DOCKET NOS. 50-445 AND 50-446 SAFETY CHILLED WATER CHILLER UNITS l

SDAR: CP-86-18 (SUPPLEMENTAL REPORT) l Gentlemen:

On May 21, 1986, our letter logged TXX-4820 provided notification that the issue involving difficulties in e+ ~+ing and operating the Safety Chilled.

Water Chiller Units was reporh der the provisions of 10CFR50.55(e).

The issue identifies the failure

)mponent Cooling Water (CCW) supply to i

maintain temperatures at or ac a.iw chilled water return temperature for both the operating and standby chillers.

I In our last report, logged TXX-88103, dated January 18, 1988, we stated corrective action (design modifications to the Safety Chilled Water C. hiller Units and CCW system) for Unit I would be completed by February 26, 1988. We are rescheduling this activity to August 11, 1988.

The schedule for Unit 2

remains unchanged.

Very truly yours, W. G. Counsil 0

R By:

Manager, Nuclear Licensing GLB/c1k c-Mr. R. D. Martin, Region IV Resident inspectors, CPSES (3)

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