05000336/LER-1981-012-03, /03L-0:on 810312,both Chlorine Detectors W/ Detector Solution Drip Rates Less than That Allowed Found During Routine Surveillance.Caused by Clogged Detector Solution Filters.Filters Replaced

/03L-0:on 810312,both Chlorine Detectors W/ Detector Solution Drip Rates Less than That Allowed Found During Routine Surveillance.Caused by Clogged Detector Solution Filters.Filters Replaced

ML20003E916
Person / Time
Site:	Millstone
Issue date:	04/02/1981
From:	NORTHEAST NUCLEAR ENERGY CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20003E912	List: 05000336/LER-1981-012, Forwards LER 81-012/03L-0 05000336/LER-1981-012-03, /03L-0:on 810312,both Chlorine Detectors W/ Detector Solution Drip Rates Less than That Allowed Found During Routine Surveillance.Caused by Clogged Detector Solution Filters.Filters Replaced
References
LER-81-012-03L-01, LER-81-12-3L-1, NUDOCS 8104170493
Download: ML20003E916 (1)

LER-1981-012, /03L-0:on 810312,both Chlorine Detectors W/ Detector Solution Drip Rates Less than That Allowed Found During Routine Surveillance.Caused by Clogged Detector Solution Filters.Filters Replaced

Event date:
Report date:
3361981012R03 - NRC Website

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60 61 DOCK ET NUMBER t8 69 EVENT DATE 74 75 HEPOf 4T DATE 80 EVENT DESCalPTION AND Pl10BARLE CONSEQUENCES h During normal operation, routine surveillance found both chlorine detectors with 1

yl detector solution drip rates less than that allowable. The control room ventilation i gog l g] I system was placed in the recirculation mode in accordance with Technical Specifi-1 cations Action Statement 3.3.3.6b for 40 minutes. LER 79-13/3L-0 involved a similar j [g I l

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33 34 35 36 37 40 41 42 43 44 sy CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h These 1

11101l Clooped detector solution filters were found in both chlorine detectors.

filters were replaced and the detectors were returned to operability. The use of i

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clean, fresh detector solution has been emphasized to those personnel performing g

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NA I 7 8 9 11 12 LOSS OF OH OAMAGE TO FACILITY l

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.7 8 9 10 NRC USE ONLY l

PUBLICITY ISSUf D DESCHIPTION 8104170493 l (2.l.OJ IJUSI NA

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