05000369/LER-1981-142-03, /03L-0:on 810819,both Channels of post-accident Containment Sump Level Instrumentation Indicated Water Levels W/No Water in Sump.Caused by Transmitters Shifting Out of Calibr Due to High Temp Conditions

/03L-0:on 810819,both Channels of post-accident Containment Sump Level Instrumentation Indicated Water Levels W/No Water in Sump.Caused by Transmitters Shifting Out of Calibr Due to High Temp Conditions

ML20010H545
Person / Time
Site:	McGuire
Issue date:	09/18/1981
From:	Nardoci P DUKE POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20010H544	List: 05000369/LER-1981-142, Forwards LER 81-142/03L-0.Detailed Event Analysis Encl 05000369/LER-1981-142-03, /03L-0:on 810819,both Channels of post-accident Containment Sump Level Instrumentation Indicated Water Levels W/No Water in Sump.Caused by Transmitters Shifting Out of Calibr Due to High Temp Conditions
References
LER-81-142-03L, LER-81-142-3L, NUDOCS 8109240607
Download: ML20010H545 (1)

LER-1981-142, /03L-0:on 810819,both Channels of post-accident Containment Sump Level Instrumentation Indicated Water Levels W/No Water in Sump.Caused by Transmitters Shifting Out of Calibr Due to High Temp Conditions

Event date:
Report date:
3691981142R03 - NRC Website

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EVENT oEscruPDoN ANo PROS A8LE CONSECUENCES h (TTTI !While in Mode 2, both channels of the post-accident containment sump level l

i I o i s j l nstrumentation Indicated water levels when no water was in ti:e sump, anc' eere I l subsequently declared inoperable.

This violates T.S.3.3.3.6 which is renort-I o.

i,,, lable pursuant to T.S.6.9.1.13 (b).

Since the transmitters involved provide io aigno safety related function and are not necessary for accident mitigation, the l la lil [inoperability of this equipment had no effect on the safe operation of the i

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CAUSE CESCMIPTICN ANo CCARECf1VE ACitoNs h li t o i [ The zero level outputs of the containment sump level transmitters (Barton,

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NAME ca eREr4RER Phillio B. Nardoci (70ld 17t.71,19 isoNE:

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