ML20012A113

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Discusses Station Blackout Coping Assessment,Conducted Per 890417 Response to Station Blackout Rule.Required Analysis Re Possible Leakage Through Control Element Drive Mechanism Seals Completed Prior to 891231 & Available for Review
ML20012A113
Person / Time
Site: Fort Calhoun Omaha Public Power District icon.png
Issue date: 03/01/1990
From: Gates W
OMAHA PUBLIC POWER DISTRICT
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
LIC-90-0173, LIC-90-173, NUDOCS 9003080301
Download: ML20012A113 (1)


Text

Omaha Public Power District 1623 Harney Omaha. Nebraska 68102 2247 402/536 4000 March 1, 1990 LIC-90-0173 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Mail Station P1-137 Washington, DC 20555

References:

1. Docket No. 50-285
2. 10CFR50.63 - Station Blackout Rule
3. Letter from OPPD (K. J. Morris) to NRC (Document Control Desk) dated April 17, 1989 (LIC-89-331)
4. Letter from OPPD (K. J. Morris) to NRC (Document Control Desk) dated June 15, 1989 (LIC-89-572)
5. Combustion Engineering Test Report (TR-ESE-816) dated Octobcr 13, 1989 Gentlemen:

SUBJECT:

Station Blackout Coping Assessment Reference 3 provided Omaha Public Power District's (0 PPD) response to the station blackout rule as it applies to Fort Calhoun Station. This reference indicated that additional analysis would be et,nducted with respect to a concern regarding possible leakage.through the Control Element Drive Mechanism (CEDM) seal s . The required analysis was completed prior to December 31, 1989 as committed in Reference 4, and is available for review at OPPD. The test results indicate that the CEDM seals would perform their intended function and will not change the Reactor Coolant System inventory coping analysis, if you should have any questions, please contact me.

Sincerely, w . JJ. h iv si nager kk k [OOMy['

P g

Nuclear Operations PNU WGG/pje c: LeBoeuf, Lamb, Leiby & MacRae A. Bournia, NRC Project Manager 0f R. D. Martin, NRC Regional Administrator, Region IV g av P. H. Harrell, NRC Senior Resident Inspector 45SR4 Empioumengi ;ngugopponunnu

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