ML17174B223

Forwards Rept of Radioactive Effluents,1977, Solid Radwaste Rept,Jul-Dec 1977 & 1977 Rept of Occupational Personnel Radiation Doses

ML17174B223
Person / Time
Site:	Zion  File:ZionSolutions icon.png
Issue date:	02/15/1978
From:	Wandke N COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17174B224	List: ML17174B223 ML19290B881 ML19290B882 ML19290B883 ML19290B884 ML19290B885 ML19290B886 ML19290B887 ML19290B888 ML19290B889 ML19290B890 ML19290B891 ML19290B892 ML19290B893 ML19290B895 ML19290B898 ML19290B901 ML19290B903 ML19290B904 ML19290B905 ML19290B909 ML19290B913 ML19290B915 ML19290B916 ML19290B917 ML19290B918 ML19290B919 ML19290B920 ML19290B921 ML19290B922 ML19290B923 ML19290B924 ML19290B925 ML19290B926 ML19290B929 ML19290B930 ML19290B932 ML19290B933 ML19290B934
References
FOIA-79-488 NUDOCS 7912140431
Download: ML17174B223 (1)

Text

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9 LICENSEE CODE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE JO

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60 61 DOCKET NUMBER 68

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EVENT DATE.

74 75

• REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES@

I During normal* surveillan.ce testing of MSIV closure times, MSIV 3-203-2D. had a closure lIJ I time of 2.9 seconds.

The Tech. Spec. *limit per table 3.7.1. -/..s 3(/=T<.../=5 second_s~

m I Event was of minimal safety significance since*all the other MSIV times were within lI1 I Tech. Spec. limits. and the.valve did close.

This is a repetitive event (See R0/179-20/

I 03-0 Docket 050-249 and RO 78-63/03L-0 Docket 050-237).

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20 31 REV!SION NO.

L2J 32 ACTION FUTURE EFFECT SHUTDOWN (22)

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44 47 rm I Review of historical closure times for MSIV's.indicate that minimal time variations I

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T_h_e_v_a_l_v_e_t_i_* m_e_w_a_s_a_d_-__ __,

(]}] I justed per DOS 250-3 to within Tech. Spec. limits.* MSIV valve timing will continue.

OIL I to be conducted quarterly' and no further corrective. action is necessary.

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