05000272/LER-1981-005-03, /03L-0:on 810128,during Routine Functional Test on Reactor Protection Sys,Safety Injection Signal Failed.Caused by Comparator Unit (Hagan Model 4111082-001) Failure. Defective Module Replaced

/03L-0:on 810128,during Routine Functional Test on Reactor Protection Sys,Safety Injection Signal Failed.Caused by Comparator Unit (Hagan Model 4111082-001) Failure. Defective Module Replaced

ML18085A871
Person / Time
Site:	Salem
Issue date:	02/12/1981
From:	Steele W Public Service Enterprise Group
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML18085A870	List: 05000272/LER-1981-005, Forwards LER 81-005/03L-0 05000272/LER-1981-005-03, /03L-0:on 810128,during Routine Functional Test on Reactor Protection Sys,Safety Injection Signal Failed.Caused by Comparator Unit (Hagan Model 4111082-001) Failure. Defective Module Replaced
References
LER-81-005-03L, LER-81-5-3L, NUDOCS 8102250280
Download: ML18085A871 (1)

LER-1981-005, /03L-0:on 810128,during Routine Functional Test on Reactor Protection Sys,Safety Injection Signal Failed.Caused by Comparator Unit (Hagan Model 4111082-001) Failure. Defective Module Replaced

Event date:
Report date:
2721981005R03 - NRC Website

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~~~~~ LlJ©I al 5 I o lo I o I 2 I 7 I 2 l(?)I o 11 I 2 I 8 I 8 11 101 a I 21 112 I a I 1 10 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75-REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES@

I During normal operation while performing a routine functional test on the Reactor Protection System (High Steam Flow, Channel II for Safety Injection) at 0820 hours0.00949 days <br />0.228 hours <br />0.00136 weeks <br />3.1201e-4 months <br /> on

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January 28, 1981, the safety injection signal could not be generated.

IAW TS CQ:IIJ 3.3.2.b normal operation continued with the inoperable channel placed in the tripped

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condition.

A work order was issued to troubleshoot and repair the-channel.

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(£]2J similar events were:

77-42, 78-44, 78-64, 79-34 and 80-46.

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!Upon troubleshooting the channel, it was found that the comparator Unit (Hagan Model

((DJ 14111082-001) had failed.

The defective module was replaced with a spare.

The IJ))] 1replacement unit was calibrated and a satisfactory channel functional test was [J))J I completed.

The channel was returned to operation at 1050 hours0.0122 days <br />0.292 hours <br />0.00174 weeks <br />3.99525e-4 months <br /> ori 1/28/81.

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