ML20205H597

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Forwards Issue a of EE-12-0013, Integrated Sys Study (Engineering Evaluation) of CRD Mechanism Rod Position Indication Instrumentation, Per long-term Action Item in
ML20205H597
Person / Time
Site: Fort Saint Vrain Xcel Energy icon.png
Issue date: 08/15/1986
From: Warembourg D
PUBLIC SERVICE CO. OF COLORADO
To: Berkow H
Office of Nuclear Reactor Regulation
Shared Package
ML20205H603 List:
References
P-86522, TAC-62198, NUDOCS 8608200119
Download: ML20205H597 (2)


Text

O OPublic Service ~ -.

Company of Colorado 2420 W. 26th Avenue, Suite 100D, Denver, Colorado 80211 August 15, 1986 Fort St. Vrain Unit No. 1 P-86522 Director of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Attention: Mr. H. N. Berkow, Director Standardization and Special Projects Directorate Docket No. 50-267

SUBJECT:

Fort St. Vrain Rod Position Instrumentation Integrated Systems Study

REFERENCE:

NRC Letter, Denton to Walker, dated 10/16/84 (G-84392)

Dear Mr. Berkow Attached please find the Fort St. Vrain Control Rod Position Instrumentation (RPI) integrated Systems Study (PSC document Engineering E*aluation EE-12-0013). This study was specified as a long term action item in the referenced letter directed towards resolving unreliable performance of the RPI.

i As indicated in our report, we plan to install upgraded indication

( instrumentation for a selected number of control rod pairs during the

next refueling outage. We will monitor the performance of the l instrumentation and if results are favorable, an action plan will be developed fcr upgrading the control rod drive position indication equipment consistent with the overall control rod drive maintenance program.

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e60820011{$IOS$67 DR ADOC PDR

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P-86522 ,'

Page 2 August 15, 1986 If you have any questions on this subject, please contact Mr. M.H.

Holmesat(303)480-6960.

Very truly yours,

)0 W. lYkJq i D. W. Warembout g, Marf6ger n Nuclear Engineering Division DW/JV:jmt

Attachment:

EE-12-0013 Issue A I

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