ML20005D952

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Forwards Monthly Operating Rept for Nov 1989 for Clinton Power Station Unit 1 & Corrections to Oct 1989 Rept
ML20005D952
Person / Time
Site: Clinton Constellation icon.png
Issue date: 12/15/1989
From: Holtzscher D
ILLINOIS POWER CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20005D953 List:
References
U-601569, NUDOCS 9001030007
Download: ML20005D952 (1)


Text

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o Uo601569 i i L30 89(12 19-LP l L

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lil/NDIS POWER COMPANY

( CLIN 1oN POMR ST ATION. P.o. BOK 076. CLINTON, ILLINOl$ 61727 l l .,

t i i' i December 15, 1989 10CTR$0.36 p I Docket No. 50 461 Document Control Desk l U.S. Nuclear Regulatory Commission l Washington, D.C. 20555 )

j

Subject:

Clinton Power Station, Unit 1 Nove'nber 1989 Month 1v Operatine Recort NPF-62 )

Dear Sir:

]

Please find in Attachment 1 the Monthly Operating Report for Clinton Power Station, Unit 1, for the period ending November 30, 1989.

While preparing the November Monthly Operating Report, an error in the October 1989 report was discovered. This error was the result of miscalculating the cumulative " NUMBER OF 110URS REACTOR WAS CRITICAL" (line 5 of the OPERATING DATA REPORT).in;the May 1989 report. The value ,

reported for May 1989 and subsequent reports was 0.6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> less than actual. This error did not affect the cumulative " REACTOR SERVICE FACTOR" or " REACTOR AVAllABILITY FACTOR" (lines 12 and 13, respectively, of-the OPERATING DATA REPORT).- This error has been corrected in the  ;

November 1989 report. Additionally, an error was discovered in the year to date " NUMBER OF 110URS REACTOR WAS CRITICAL",, " REACTOR SERVICE FACTOR" 4 and " REACTOR AVAILABILITY FACTOR" (lines 5, 12 and 13, respectively, of the OPERATINC DATA REPORT) values reported in the October 1989 report. '

Corrected year to date values for these parameters are provided in Attachment 2.

Sincerely yours, V-caw D. L. lloltzscher Acting Manager -

Licensing and Safety i

DAS/krm Attachment I cc: Regional Administrator, Region III, USNRC I

9001030007 891215 i 1 PDR ADOCK 05000461 R PDC .

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