05000270/LER-1982-011-03, /03L-0:on 820822,erratic Indication Observed on Channel a Borated Water Storage Tank Level Instrumentation. Caused by Boiling Water in Level Transmitter Line.Heat Tracing Disconnected & Transmitter Lines Refilled

/03L-0:on 820822,erratic Indication Observed on Channel a Borated Water Storage Tank Level Instrumentation. Caused by Boiling Water in Level Transmitter Line.Heat Tracing Disconnected & Transmitter Lines Refilled

ML20027B839
Person / Time
Site:	Oconee
Issue date:	09/21/1982
From:	Petty J DUKE POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20027B836	List: 05000270/LER-1982-011, Forwards LER 82-011/03L-0.Detailed Event Analysis Encl 05000270/LER-1982-011-03, /03L-0:on 820822,erratic Indication Observed on Channel a Borated Water Storage Tank Level Instrumentation. Caused by Boiling Water in Level Transmitter Line.Heat Tracing Disconnected & Transmitter Lines Refilled
References
LER-82-011-03L-02, LER-82-11-3L-2, NUDOCS 8209300186
Download: ML20027B839 (1)

LER-1982-011, /03L-0:on 820822,erratic Indication Observed on Channel a Borated Water Storage Tank Level Instrumentation. Caused by Boiling Water in Level Transmitter Line.Heat Tracing Disconnected & Transmitter Lines Refilled

Event date:
Report date:
2701982011R03 - NRC Website

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EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h.

Io12llAt 1500 on August 22. 1982 Control Room nersonnel observed erratic indication l

lol3llon Unit 2's Channel "A" Borated Water Storage Tank (BWST) level instrumentation.l

[ o l 4 l l This violated T.S. 3.3.4. (b).

BWST Channel "B" was operable while Channel "A"

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gg3jgwas out of service, and the water level in the BWST was maintained within l

lolsll Technical Specification limits at all times. Therefore, the health and safety l of the public were not affected, lo18Il l

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u CAUSE DESCRIPTION ANO CORRECTIVE ACTIONS h l i lo l l The erratic indication was due to boiling in the level transmitter line. The l

,;,;; heat tracing on that line was disconnected, the transmitter lines were refilled; with water, and the instrumentation was declared operable within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. A 1

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NRC USE ONLY l 2 l o l l N j@l NA l lllllllllllll NAME oF PREPARER Joceivn C. Petty PHONE:

(704) 373-8270 8209300186 820921 PDR ADOCK 05000270 S

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