ML18024A591

LER#78-033/03L-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

ML18024A591
Person / Time
Site:	Browns Ferry
Issue date:	12/13/1978
From:	TENNESSEE VALLEY AUTHORITY
To:
Shared Package
ML18024A590	List: ML18024A589 ML18024A591
References
LER-78-033-03L-01, LER-78-33-3L-1, NUDOCS 7812190122
Download: ML18024A591 (2)

Text

III 71],'O LICENSEE EVENT REPORT 7

CON'T 8 9 CONTROL BLOCK:

A L B UCENSEE CODE R F oO~

14 15 o o o O1 o o o LICENSE NUMBER o o pic 25 26

'4~05 (PLEASE PRINT OR TYPE ALL REQUIREO INFORMATIONI LICENSE TYPE 30 57 CAT 58

~01 1 2 1 3 7 8 7 8 sOURGE LQO 60 61 DOCKET NUhIBER 68 69 EVENT DATE 74 QB 75 REPORT DATE 80 Q9 EVENT DESCRIPTION ANO PROBABLE CONSEQUENCES QIO

~O2 Durin refuelin while surveillance test from 35 iso-

~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.

~O7

~OB 80 7 8 9 SYSTEM . CAUSE CAUSE COMP. VALVE zz 7 8 9

~~~

CODE 10 0>>

CODE

~~0>>

11 SUBCODE

~~0>>

12 SEOUENTIAL 13

~ ~ i COMPONENTCODE

~

18 OCCURRENCE 0>>

SUBCODE

~xO>>

'19 REPORT

~S SUBCOOE 20 REVISION Q>>

LERIRO REPQR>

ACTION . FUTURE EVENT YEAR

~78 21 22 EFFECT

~

23 SHUTDOWN

~03 24 REPORT NO.

3 26

~W 27

~03 28 ATTACHMENT CODE 29 NPROP TYPE

~L 30 PRIME COMP.

31

~o NO.

COMPONENT TAKEN ACTION ON PLANT METHOD HOURS Q22 SUBMITTED FORhI SUB. SUPPLIER MANUFACTURER 33 0>>~<0>>

34

~ZQ2D 35

~ZQ>~

36 37 0 0 0 0 40

~N 41 023 ~Q24 42

~0>>

43 9 9 (ac 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 027 Normal wearing of the seats on the valves tested res 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.

80

~~

7 8 9 FACILITY Q

~SO METHOD OF 7

5 8

~

STATUS 9

Q28 10 CONTENT K POWER 12 Q29 13 OTHER STATUS 44 DISCOVERY Lal03 45 46 DISCOVERY DESCRIPTION Q32 c sti 80 ACTIVITY RELEASED OF RELEASE AMOUNTOF ACTIVITYOS LOCATION OF RELEASE Q EZ 7 8

&Os 9

~O 10 PERSONNEL EXPOSURES 11 44' 45 NA 80 NUMBER TYPE DESCRIPTION Q39

~l7 ~00 0 Ql> ~ZQ3>

13 NA 80 7 8 9 11 12 PERSONNEL INJURIES NUMBER OESCRIPTIONO41

~ao o Q4o wa 80 8 9 12 0

7 11 LOSS OF OR DAMAGE To FACILITY TYPE DESCRIPTION z O4. NA 7 8 9 10 80 PUBLICITY NRC USE ONLY o

ISSUED

~NO44 DESCRIPTION Q NA IV 7 8 9 10 68 69 80 o 0

NAME OF PREPARER PHONE: O V81-2 g 90 I 3.&-

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