ML20040A107

Revised LER 81-064/03X-3:on 811012 & 13,pump for Re 5028, post-accident Containment Radiation Monitor,Failed.Caused by Decreased Flow Due to Pump Vane Wear.Maint Step Added to Check & Set Flow Weekly.Redundant Sys Operable During Event

ML20040A107
Person / Time
Site:	Davis Besse
Issue date:	01/07/1982
From:	Eldred D TOLEDO EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20040A102	List: ML20040A101 ML20040A107
References
LER-81-064-03X, LER-81-64-3X, NUDOCS 8201200353
Download: ML20040A107 (1)

Text

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c EVENT DEScalPTION AND PROBABLE CONStOLEf.CES the pumn for PE 5029. h the Post-Accident Cen- 1 i s 1:1 l (NP-33-01-75) on 10/12/81 and 10/13/81, running. On 10/13/81 and 11/3/81 the pump 1

3;,; gtainment Radiation Monitor was found not These occurrences are being reported per Technical l

,jajjfor RE 5030 was also found off.

There was 1.o danger to the health and safety of l

,3,  ; Specification 3.3.3.6, Table 3.3-10.

A redundant system was always operable. In addition {

l2 g ;jthe public or station personnel.

d no release into l

,.l-l lthere was no buildup of activity in containment during this time, an

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s1 43 41 42 44 CAUSE DESCR'PTION AND CORRECTIVE ACTIONS h I failure. The flow was discovered to be at approximate 1v 3 l i l o ] {The cause was component Flow through these monitors tends to de-  !

lilillsefm which is the trip point for low flow.

The pump for RE 5030 was replaced and declared operableI

, ., l crease due to pump vane wear.

j y lon 11/21/81. A step was added to Maintenance Work Order IC-MWO Lii2 to chec l

g { flows weekly. 83 7 6 9 DISCOVERY DESCR'PTION OTHER ST ATUS ISCO RY STA S  % POWER l l [ Aj @l Operator Observation i 5 W@ l 1i el ol@i NA ACTIVITY C TENT loc ATION OF f4 ELE A;E AYOUNT OF ACTIVITY l

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