05000296/LER-1978-033-03, /03L-0 on 781114:leakage from 35 Isolation Valves Which Terminate Below Suppression Pool Water Level Exceeded Inventory Restriction of 20781 Cubic Feet Per 30 Days.Caused by Wearing of Seats on Valves

/03L-0 on 781114:leakage from 35 Isolation Valves Which Terminate Below Suppression Pool Water Level Exceeded Inventory Restriction of 20781 Cubic Feet Per 30 Days.Caused by Wearing of Seats on Valves

ML18024A591
Person / Time
Site:	Browns Ferry
Issue date:	12/13/1978
From:	TENNESSEE VALLEY AUTHORITY
To:
Shared Package
ML18024A590	List: 05000296/LER-1978-033, Forwards LER 78-033/03L-0 05000296/LER-1978-033-03, /03L-0 on 781114:leakage from 35 Isolation Valves Which Terminate Below Suppression Pool Water Level Exceeded Inventory Restriction of 20781 Cubic Feet Per 30 Days.Caused by Wearing of Seats on Valves
References
LER-78-033-03L-01, LER-78-33-3L-1, NUDOCS 7812190122
Download: ML18024A591 (2)

LER-1978-033, /03L-0 on 781114:leakage from 35 Isolation Valves Which Terminate Below Suppression Pool Water Level Exceeded Inventory Restriction of 20781 Cubic Feet Per 30 Days.Caused by Wearing of Seats on Valves

Event date:
Report date:
2961978033R03 - NRC Website

text

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UCENSEE CODE sOURGE LQO 60 61 DOCKET NUhIBER 68 69 EVENT DATE EVENT DESCRIPTION ANO PROBABLE CONSEQUENCES QIO Durin refuelin while surveillance test QB 1

2 1

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8 Q9 74 75 REPORT DATE 80 from 35 iso-LICENSEE EVENT REPORT O1 (PLEASE PRINT OR TYPE ALLREQUIREO INFORMATIONI oO~

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~O3 lation valves which terminate belo~ the suppression pool water level exceeded the in-ventory restriction of 20,781 cubic feet per 30 days..

There were no revious occur-

~OS rences 'reported as a result of this restriction.

There was no hazard to the public

~OB health or safety.

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~OB 7

8 9

SYSTEM

CAUSE

CAUSE COMP.

VALVE CODE CODE SUBCODE COMPONENTCODE SUBCODE SUBCOOE zz

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10 11 12 13 18

'19 20 SEOUENTIAL OCCURRENCE REPORT LERIRO EVENT YEAR REPORT NO.

CODE TYPE Q>>

REPQR>

~78

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~03 3

~W

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~L 21 22 23 24 26 27 28 29 30 31 ACTION. FUTURE EFFECT SHUTDOWN ATTACHMENT NPROP PRIME COMP.

TAKEN ACTION ON PLANT METHOD HOURS Q22 SUBMITTED FORhI SUB.

SUPPLIER 0>>~<0>>

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33 34 35 36 37 40 41 42 43 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 027 Normal wearing of the seats on the valves tested res 80 REVISION NO.

~o COMPONENT MANUFACTURER 9

9 (ac 47 The valves were re aired b

la in the seats.

Namenlate data of the valves unavailable at this time.

The information will be re orted as a su lement at a later date.

No recurrence control action will be taken since the roblem was a result of 4

normal wear.

7 8

9 FACILITY

~SO METHOD OF STATUS K POWER OTHER STATUS Q DISCOVERY 5 ~ Q28 ~~ Q29 Lal03 7

8 9

10 12 13 44 45 46 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNTOF ACTIVITYOS EZ &Os ~O 7

8 9

10 11 44' 45 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION Q39

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11 12 13 PERSONNEL INJURIES NUMBER OESCRIPTIONO41

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11 12 LOSS OF OR DAMAGETo FACILITY0 TYPE

DESCRIPTION

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NA 7

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10 PUBLICITY ISSUED DESCRIPTIONQ o

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10 NAME OF PREPARER V81-2 g 90 I 3.&-

80 80 80 80 80 PHONE:

68 69 80 NRC USE ONLY IV 80 o

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DISCOVERY DESCRIPTION Q32 c

sti LOCATIONOF RELEASE Q NA

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