ML19256F116

LER 79-082/03L-0:on 791019,during Hcpi Flow Test,High/Low Alarm Malfunctioned.Caused by Annunciator Card W/Incorrect Logic Configuration.Annunciator Card Replaced.Controls Being Developed

ML19256F116
Person / Time
Site:	Brunswick
Issue date:	11/16/1979
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19256F111	List: ML19256F110 ML19256F116
References
LER-79-082-03L-01, LER-79-82-3L-1, NUDOCS 7911210444
Download: ML19256F116 (2)

Text

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LICENSEE EVENT REPORT CC g

C w . ,. J CONTROL BLOCK:

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(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) foTl8 I9 Nl Cl 7

Bl El Pl 2l@l0 LICENSEE CODE 14 :S l0 l- l0 l0 l0 l0 10 l- l0 l0 2$l@{4 LICENSE NUMBER 26 l1 L8l1 l1TYPE CENSE l1JOl@lbi G lT 58l@

CON'T o i REPoR 3a nC lL gl 0l 5l 0l -l 0l 3l 2 l 4 @l 691l 0lEVENT 1l D9l 7l9@ l l l l l 80 l@

8 60 61 hd ATE 74 75 REPORT DATE i DOCKET NUM8ER EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h o 2 lWhile performing PT 9.5, HPCI Full Flow Test, torus level increased to >-27 inches. g o 3 l The high/ low alarm did not actuate and the problem was not noted until the high-high g l

o 4 l alarm annunciated.

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o s I I o 16 I l Technical Specifications 3.6.2.1, 6.9.1.9.b g O 7 l l

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80 7 8 9 CE CODE SUSCO E COMPONENT CODE SUS SU E o 9 l Sl Alg ]g l C lQ l Z l Z l Z l Z lZ l Z lQ l SOD'Eg 18 19 20 g

7 8 9 to 11 12 13 SEQUENTIAL CCCURRENCE REPORT REVISION EVENT YE AR R EPORT NO. CODE TYPE O.

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44 MANY I l A lY "lE 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS'@

i o l The HPCI turbine was immediately secured and the torus pumped to the normal operating ;

W l band. The HPCI minimum flow valve F012 was found partially open and the annunciator g LLL;j l card for the high/ low alarm was found to have an annunciator card with the incorrect  ;

gl logic configuration, which resulted in an alarm in the ne. mal operating band and the ;

i 4 l alarm clearing when the level was either high or low. The F012 valve was (continued);

7 8 9 33 STA S '. POW ER OTHER STATUS 015 0 RY DISCOVERY DESCRIPTION i 5 lE @ l 0] 8l 6l@l NA l l A lgl System Alarm l

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NAME OF PREPARER PHONE:

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LER CONTINUATION - RO# 2-79-82 Facility: BSEP Unit #2 Event Date: 10-19-79 inspected and cycled four times with proper operation noted each time. The annunciator card was replaced with one using correct logic for this applica-tion. Controls will be developed to ensure annunciator cards with the proper logic configuration are always used. All I&C personnel will review this LER with emphasis placed on the proper use of electronic components for their intended application. All Operations personnel will review this LER with emphasis on using available instrumentation during normal and special (PT's, etc.) operation and not relying on alarms. An EWR will be prepared to have _

plant Engineering investigate the reasons for F012 not going fully shut on all occasions.

13/S $61

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