05000316/LER-1980-002-03, /03L-0:on 800115,during Integrity Testing of South Safety Injection Train,Excessive Leakage from Safety Injection Valve to Pressurizer Relief Tank Observed.Caused by Undersized Disc Insert.Disc Insert & Nozzle Replaced

/03L-0:on 800115,during Integrity Testing of South Safety Injection Train,Excessive Leakage from Safety Injection Valve to Pressurizer Relief Tank Observed.Caused by Undersized Disc Insert.Disc Insert & Nozzle Replaced

ML17326A494
Person / Time
Site:	Cook
Issue date:	02/08/1980
From:	Michael Brown INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17318A617	List: 05000316/LER-1980-002, Forwards LER 80-002/03L-0 05000316/LER-1980-002-03, /03L-0:on 800115,during Integrity Testing of South Safety Injection Train,Excessive Leakage from Safety Injection Valve to Pressurizer Relief Tank Observed.Caused by Undersized Disc Insert.Disc Insert & Nozzle Replaced
References
LER-80-002-03L, LER-80-2-3L, NUDOCS 8002140611
Download: ML17326A494 (2)

LER-1980-002, /03L-0:on 800115,during Integrity Testing of South Safety Injection Train,Excessive Leakage from Safety Injection Valve to Pressurizer Relief Tank Observed.Caused by Undersized Disc Insert.Disc Insert & Nozzle Replaced

Event date:
Report date:
3161980002R03 - NRC Website

text

NRC FORM 366

{7-77I LICENSEE EVENT REPORT U. S. NUCLEAR REGULATORY COMMISSION 7

~ 8 CON'T 7

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I IQE~QE 25 26 LICENSE TYPE 30 57 CAT 58 80 QB REPDRT ~LQB 0

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60 61 DOCKET NUMBER 68 69 EVENT DATE 74 IS REPORT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES Q10 DURING INTEGRITY TESTING OF THE SOUTH SAFETY INJECTION TRAIN EXCESSIVE

~03

~04

~os LEAKAGE FROM THE SAFETY INJECTION VALVE TO THE PRESSURIZER RELIEF TANK WAS IDENTIFIEDe DURING REPAIRS TO SV-98, THE SOUTH SAFETY INJECTION PUMP WAS INOPERABLE PER TECWICAL SPECIFICATION 3.5.2.

ACTION ITEMS WERE FOLLOWED.

THE NORTH SAFETY INJECTION TRAIN REMAINED OPERABLE DURING THIS EVENT.

NO PREVIOUS OCCURRENCES.

PUBLIC HEALTH AND SAFETY WERE NOT AFFECTED.

~06

~07

~OS 80 7

8 7

8 SYSTEM

CAUSE

CAUSE COMP.

VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE

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10 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT.

REVISION LFR/RO EVENT YEAR REPORT NO.

CODE TYPE NO.

Q11 REPORT

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21 22 23 24 26 27 28 29 30 31 32 ACTION FUTURE EFFFCT SHUTDOWN ATTACHMENT NPRDQ PRIME COMP.

COMPONENT TAKEN ACTION ON PLANT METHOD

'OURS Q22 SUBMITTED FORM SUB.

SUPPLIER MANUFACTURER-

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0 Q24 33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS Q27 o

THE DISC INSERT CROSBY PART NUMBER 084-519 WAS FOUND TO BE UNDERSIZED AND DID NOT PROPERLY SEAL AGAINST THE SAFETY VALVE NOZZLE.

THE SAFETY VALVE'S DISC INSERT AND NOZZLE WERE REPLACED.

SV-98 WAS REINSTALLED 3

FOLLOWING A BENCH TEST OF ITS PRESSURE SETPOINT.

THE UNDERSIZED DISC INSERT IS BELIEVED TO BE A MANUFACTURING ERROR.

7 8

9 FACILITY STATUS

% POWE R OTHER STATUS Q30 s

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0 0

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11 12 LOSS OF OR DAMAGE,TOFACILITYQ43 TYPE

DESCRIPTION

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10 PUBLICITY ISSUED DESCRIPTION~

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10 NAME OF PREPARER M

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BROWN CD Q ~O ACTIVITY CONTENT RELEASED OF RELEASE AMOUNTOF ACTIVITY KZ ua Q33 Q34 NA 7

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10 11 44 PERSONNEL EXPOSURES NUMBER TYPE

DESCRIPTION

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11 12 13 PERSONNEI. INJURIES NUMBER DESCRIPTION Q41

~00 0 Q44 NA 80 80 45 80 80 80 68 69 NRC USE ONLY 80 42N I

80 o PHDNE. (616) 465-5901 EXT. 398 3'~<2.j oa q METHOD OF DISCOVERY DISCOVERY DESCRIPTION Q32

~CPOT SPECIAL TEST 004 45

'46 LOCATIONOF RELEASE Q

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