ML20040E834

LER 81-075/03L-0:on 811231,during Normal Operation,Flow Indicator for Turbine Gland Seal leak-off Failed Low.Cause Unknown.Indicator Installed in Wet Sys Could Be Contributing Factor.Indicator Replaced

ML20040E834
Person / Time
Site:	Cook
Issue date:	01/29/1982
From:	Palmer R INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20040E831	List: ML20040E830 ML20040E834
References
LER-81-075-03L, LER-81-75-3L, NUDOCS 8202050421
Download: ML20040E834 (2)

Text

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EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES to 1012 I I DURING NORMAL OPERATION, THE FLOW IN CATOR (SFR-201) FOR THE TURBINE GLAND SEAL LEAK l lOi31,l0FF (GSLO) FAILED LOW. THIS INSTRUMENTATION WAS DECLARED INOPERABLE AT APPR0XIMATELY l l0 s il1530 HOURS ON DECEMBER 31, 1981. CONTINU0US FLOW MEASUREMENT IS REQUIRED BY TECH- l

[Olsl l NICAL SPECIFICATION, APPENDIX B, 2.4.4.b AND TABLE 2.2.4. THIS FLOW INDICATION HAS l IOisil FAILED ON PREVIOUS OCCASIONS. HOWEVER, THESE FAILURES WERE NOT REPORTED. l l

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44 41 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h liIOllTHE CAUSE OF THE FLOW INDICATOR FAILURE IS UNKNOWN SINCE THIS IS A SEALED UNIT. THE l i

li ii j l INDICATOR IS INSTALLED IN A WET SYSTEM AND IT IS THOUGHT THAT THIS COULD BE CONTRIB-ii12i iUTING TO THE INDICATOR FAILURE. EFFORTS ARE BEING MADE TO REDUCE THE MOISTURE IN l l

l iia l l THIS AREA. THE INDICATOR IS MANUFACTURED BY THERMO-SYSTEMS INC. THE INDICATOR WAS 1i I4 I I REPLACED AND DECLARED OPERABLE AT 1320 HOURS ON JANUARY 4,1982. l

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" ' 8 PuouSTY 8202050421 820129 NRC USE ONLY issue DESCRIPTION @ PDR ADOCK 05000316 ,

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616-465-5901 NAME OF PREPARER

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ATTACHMENT TO LER# 81-075/03L-0 SUPPLEMENT TO EVENT DESCRIPTION DURING NORMAL OPERATION, THE FLOW INDICATOR (SFR-201) FOR THE TURBINE GLAND SEAL LEAK 0FF (GSLO) FAILED LOW. THIS INSTRUMENTATION WAS DECLARED INOPERABLE AT APPR0XIMATELY 1530 HOURS ON DECEMBER 31, 1981. CONTINUOUS FLOW MEASUREMENT IS REQUIRED BY TECHNICAL SPECIFICATION, APPENDIX B, 2.4.4.b AND TABLE 2.2.4. A REVIEW 0F JOB ORDERS INDICATED THAT THIS INSTRUMENT HAD FAILED ON PREVIOUS OCCASIONS, AND THE MATTER WAS NOT REPORTED. THIS WAS DUE TO THE UNCLARITY IN THE ACTION REQUIREMENT OF THE SUBJECT TECHNICAL SPECIFICATIONS WITH RESPECT TO THE FLOW MEASURING DEVICE.

SUPPLEMENT TO CAUSE DESCRIPTION A REQUEST FOR CHANGE OF APPENDIX B TECHNICAL SPECIFICATION 2.4.4.b TO SPECIFY ACTIONS TO BE TAKEN WHENEVER THE FLOW MEASURING DEVICE FAILS WILL BE INITIATED.

ADMINISTRATIVE MEASURES WILL BE TAKEN TO QUANTIFY FLOW RATES WHEN THE FLOW METER FAILS AND TO ASSURE COMPLIANCE WITH THE REPORTING REQUIREMENTS.

THIS WILL BE ACCOMPLISHED BY MARCH 1, 1982.