05000272/LER-1980-063-01, /01X-1:on 801208,found That Auxiliary Feedwater Pumps 11 & 12 Could Be Stopped from Control Console If Steam Generator Low Low Level Is Received During Safeguards Equipment Control Sys Operation.Caused by Design Error

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/01X-1:on 801208,found That Auxiliary Feedwater Pumps 11 & 12 Could Be Stopped from Control Console If Steam Generator Low Low Level Is Received During Safeguards Equipment Control Sys Operation.Caused by Design Error
ML18085B121
Person / Time
Site: Salem 
Issue date: 03/25/1981
From: Steele W
Public Service Enterprise Group
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML18085B120 List:
References
LER-80-063-01X, LER-80-63-1X, NUDOCS 8104020551
Download: ML18085B121 (1)


LER-1980-063, /01X-1:on 801208,found That Auxiliary Feedwater Pumps 11 & 12 Could Be Stopped from Control Console If Steam Generator Low Low Level Is Received During Safeguards Equipment Control Sys Operation.Caused by Design Error
Event date:
Report date:
2721980063R01 - NRC Website

text

NRC FORM 366

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e LICENSEE EVENT REPORT U.S. NUCLEAR REGULATORY COMMISSION I

CONTROL BLOCK: l l I I I l 1 Q (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

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LICENSEE CODE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE 30 57 CAT 58 CON"T [ITIJ 7

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[£]2J I During routine surveillance testing, it was found that the Nos. 11 and 12 Auxiliary

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Feedwater Pumps could be stopped from the control console if a Steam Generator low [QJ}]

low level signal is received during Safeguards Equipment Control System operation.

[Q))J This is a malfunction of a safety-related system and is a violation of Technical Specification 6.9.1.8.e.

No previous occurrences.

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SYSTEM CODE le I HI@

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CAUSE

CAUSE CODE SUBCODE

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13 18 SEQUENTIAL OCCURRENCE

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LE R RO CVENT YE.11.R REPORT NO.

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20 l=1 31 ACTION FUTURE EFFECT SHUTDOWN

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ATTACHMENT NPRD-4 PRIME COMP.

SUPPLIER REVISIOfl/

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CAUSE DESCRIPTION AND CORRECTIVE ACTIONS @

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I Design error.

Design Change Request l-EC-1084 was issued and implemented on December 6, 1980 to preclude manual operation of the Auxiliary Feedwater Pumps during Safeguards Equipment Control System operation for Unit 1.

Design Change IIIIJ I Request 2-EC-1085, implemented on February 24, 1981, will accomplish the same for OJI)

Unit 2.

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9 80 FACILITY STATUS

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10 11 PERSONNEL EXPOSURES r:;;;,,

NUMBER

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DESCRIPTION

45 46 44 45 LOCATION OF RELEASE @

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NA 8

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NUMBER DESCRIPTION~

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TYPE

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N A 1 1 1 1 1 1 1 1 1 1 NRC USE ONLY

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~1"4020 NAME OF PREPARER w. J. Steele PHONE: _____

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