05000316/LER-1980-008-03, /03L-0:on 800201,review of 791102 Test Procedure Indicated as-found Data for Loop 1,channel 1,reactor Coolant Flow Transmitter Found 3.8% Out of Calibr.Caused by Transmitter Drift.Transmitter Recalibr

/03L-0:on 800201,review of 791102 Test Procedure Indicated as-found Data for Loop 1,channel 1,reactor Coolant Flow Transmitter Found 3.8% Out of Calibr.Caused by Transmitter Drift.Transmitter Recalibr

ML17326A556
Person / Time
Site:	Cook
Issue date:	02/29/1980
From:	Delong S INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17326A554	List: 05000316/LER-1980-008, Forwards LER 80-008/03L-0 05000316/LER-1980-008-03, /03L-0:on 800201,review of 791102 Test Procedure Indicated as-found Data for Loop 1,channel 1,reactor Coolant Flow Transmitter Found 3.8% Out of Calibr.Caused by Transmitter Drift.Transmitter Recalibr
References
LER-80-008-03L, LER-80-8-3L, NUDOCS 8003060602
Download: ML17326A556 (3)

LER-1980-008, /03L-0:on 800201,review of 791102 Test Procedure Indicated as-found Data for Loop 1,channel 1,reactor Coolant Flow Transmitter Found 3.8% Out of Calibr.Caused by Transmitter Drift.Transmitter Recalibr

Event date:
Report date:
3161980008R03 - NRC Website

text

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8 OQ 60 61 ppCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION ANO PROBABLE CONSEQUENCES +10 A REVIEW (CONDUCTED ON 02-01-80)

OF A SURVfILLANCE TEST PROCEDURE (PERFORMED ON 11-02-79)

INDICATED THAT THf AS FOUND DATA FOR LOOP 1

CHANNEL 1, REACTOR COOLANT FLOW TRANSMITTER WAS FOUND TO BE 3.8 PER CENT OUT OF CALIBRATION.

THIS CONDITION WAS NON-CONSERVATIVE WITH RESPECT TO T.S.

TABLE 2.2-1 ITEM 12.

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~0 21 22 23 24 26 27 28 29 30 31 32 ACTION FUTURE EFF ECT SHUTDOWN ATTACHMENT NPROA PRIME COMP.

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0 Qs 33 34 35 36 37 40 41 42 43 44 47 CAUSE OESCRIPTION ANDCORRECTIVE ACTIONS &27 THE 3.8 PER CENT TRANSMITTER ERROR WAS DUE TO TRANSMITTER DRIFT.

THE TRANSMITTER WAS IMMEDIATELY RECALIBRATED TO WITHIN ACCEPTABLE TOLERANCES.

IN ORDER TO PROVIDE A GREATER MARGIN FOR TRANSMITTER DRIFT THE REACTOR COOLANT LOW FLOW ALARM SETPOINT 3

4 WAS INCREASED IN THE CONSERVATIVE DIRfCTION FROM 90 PER CENT TO 93 PER CENT FLOW.

THE T.S.

LCO VALUE IS 89 PER CfNT FLOW.

SEE ATTACHED SUPPLEMENT.

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10 NAME OF PREPARER 80 80 80 80 80030eo o Z 68 69 P HQQl 7-4 6 5-59 0 1 80 NRC USE ONLY PsO 80 g 0

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~BQ3i INSTRUMENT MAINTENANCE PROCEDURE 45 48 LOCATIONOF RELEASEQ NA 45

SUPPLEMENT TO LER 4 80-008/03LW SUPPLEMENT TO CAUSE DESCRIPTION THE ACTION REQUIREMENT OF T.S.

TABLE 2.2-1 ITEM 12 tlAS FULFILLED.

THE TRANSMITTER HAS A FOXBORO DP MODEL NUMBER E13 DH-HSAH1