ML19262B997

Updated LER 79-008/03X-1:on 790114,during Mode 1 Operation, Refueling Water Tank Level Transmitter Sensing Line Froze. Caused by Burnout of Heat Lamp in Transmitter Box.Lamp Replaced

ML19262B997
Person / Time
Site:	Arkansas Nuclear
Issue date:	01/18/1980
From:	Shively C ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19262B990	List: ML19262B989 ML19262B995 ML19262B997
References
LER-79-008-03X, LER-79-8-3X, NUDOCS 8001220396
Download: ML19262B997 (1)

Text

UPDATE REPORT - PREVIOUS REPORT DATE 2/7/79 i

NRC FORM 3i,6 U. 5. NUCLE AR REGULATORY COMMIS$ TON (7 77)

LICENSEE EVENT REPORT EXHIBIT A CONTROL BLOCst: l l l l l l 6lh (PLEASE PRINT OR TYPE ALL REOUIRED INFORMATION) 6

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3 60 61 DOCKET hup 0ER t>8 6'e EVENT DATE  ?$ H, PORT Daf t f7TTlEVENT I During OESCRIPTION AND PROS ABLE CONSEQUENCES O'o Mode 1 operation, refueling water tank level transmitter, j 1o12j i 2LT-5639-3, sensing line froze, making the transmitter inoperable. Tne i o . low RWT level trip (RAS) signal on PPS channel "C" was bypassed per the in Isl I reauirements of Action statement T.S. Table 3.3-3.6.bi9. The remaining i 10 g i i RWT level indications were verified to be normal. Similar occurrences ,

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,,,,, transmitter box had burned out. The lamp was replaced & remained in m i service until November,1979, when heat tracina was permanently installed

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