ML20062B139

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Forwards Rev to Design Assessment Rept
ML20062B139
Person / Time
Site: LaSalle  Constellation icon.png
Issue date: 10/16/1978
From: Reed C
COMMONWEALTH EDISON CO.
To: Parr O
Office of Nuclear Reactor Regulation
Shared Package
ML20062B143 List:
References
NUDOCS 7810230181
Download: ML20062B139 (1)


Text

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8 9 LICENSEE CODE 14 15 LtCENSE NUM8tR 25 26 LICENSE TYPE JO 57 LAT 58 CON'T IOlll sO[RC ILGLo15 l0 l-10 13 12 l4 l@l0 l9 10 h 17 18 l@lllOl0I4l7lR l@

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60 GI DOCK ET NUMBER 68 63 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h lo l2l l RCI_C isolation channel "A" tripped momentarily causine the RCTC wstem en ho l

l O 13 l l inoperative. A control room annunciator indicated the trip was caused by a steam l

l o 14 l l leak detector signal.

(Technical Specification 3.7.4) l 10151l l

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8 9 80 SYSTEM CAUSE CAUSE COMP.

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CODE CODE SUSCODE COMPONENT CODE SUSCODE SUSCODE l Cl El@ Wh l A lh lR l El Ll Al Yl Xl h W h [2_l h a

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10 11 12 13 18 13 20 SEQUENTIAL OCCURRENCE REPORT REVISION LE R/Ro EVENT YEAR REPORT NO.

CODE TYPE N O.

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[ijil l occurred. A defective RX-2 relay caused the false isolation and uns ronincod.

TW l i,i7; l 1s considered an isolated incident and no further corrective action is roauired.

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7 8 9 11 12 80 LOSS OF OR DAMAGE To FACILITY h TYPE DESCRIPTION v

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