ML20038C308

Updated LER 81-060/03X-1:on 810913,while Changing Power, Daily Offgas Sample Showed Ratio of Long to short-lived Isotopes Violated Tech Spec,But Violation Not Recognized. Caused by Change in Power.Data Sheet Changed

ML20038C308
Person / Time
Site:	Dresden
Issue date:	11/24/1981
From:	Rowley E COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20038C304	List: ML20038C303 ML20038C308
References
LER-81-060-03X, LER-81-60-3X, NUDOCS 8112100389
Download: ML20038C308 (2)

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'gy.tn LICENSEE EVENT REPORT- Update Raport: Previous report date 10-13-81 Ih

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s 74 75 l 7 8 60 41 coCKET NVMS ER 68 69 EV ENT C ATE REPORT CATE EVENT CESCRIPTION AND PRCB ABLE CCNSEQUENCES h g o !2 lWhile changing power, the daily offgas sa=ple was taken per DCP 1600-11. The ratto of I I o 13 I il ong to short lived isotopes (4.35) was out of the established ranges (4.38 - 6.57) in l

,o,,l l violation of Tech. Spec. 4.8.A.2.a. The RCT did not recognize that this was out of I l o i s i f range. A new sample was not taken, and therefore, no new ratio was established. The [

] o !s I levent is of minimal safety significance because samples are taken before entering the l lo ! 71 Ifiltering system. No danger to the public health or safety. Previous similar occur- l

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81 105 PART I l TITLE OF EVENT Daily Off Gas Ratio Out of OCCURRED Limits & Second Sample Not Taken as Soon As Possible Sept. 13, 1981 10 00 DATE T i tie REASON FOR SUPPLEliENTAL REPORT Revised Corrective Action 1

PART 2 l ACCEPTANCE BY STATION REVIEV k, E ,ws d/ / [.

DATE lll.21/ 2 ) I)A li 9,

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SUPPLEtiE!!TAL REPORT APPROVED / //

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