ML18045A743

LER 80-035/03L-0:on 800830,during Return to Svc After Shutdown,Leakage Discovered Through Pressure Relief Valve. Caused by Loose Spring Guide within Solenoid Assembly Valve Due to Failed Brazed Joint.Guide Brazed Back Onto Plate

ML18045A743
Person / Time
Site:	Palisades
Issue date:	09/30/1980
From:	WITHROW G C CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML18045A742	List: ML18045A741 ML18045A743
References
LER-80-035-03L, LER-80-35-3L, NUDOCS 8010070520
Download: ML18045A743 (1)

Text

( PALISADES PLANT NRC FORM366 !7*77) U.S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT CONTROL .. B,L.OCK: I 10 (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 6 .!TITI IMI II PIAILl-11@10101-10101010101-1010101411111111101 I '© 7 8 ll LICENSEE CODE 14* 'S

• LICENSE NUMBER

• 25 26 LICENSE TYPE 30 . CON'T filI] 7 8 L.blG) I o I 5 I o I o I o I 2 I 5 I 5 K2)1 o ! 8 I 3 Io I 8 I o ©I o I 9., I 3 I o. I 8 I o I@ 60 61 DOCKET NUMBER

• 68 69 EVENT DATE 74 75 REPORT CATE 80 EVENT DESCRIPTION ANO PROBABLE CONSEQUENCES@-

! During prei:lar.ations to return the unit to service following a cold shut-down, the PCS was.pressurized to approx. 200 psig to check for lea.ks. Leakage was found through PRV 1042B.

revealed the valve [QJI] I pilot was being held open by the solenoid plunger which had dropped onto []]]] 1 the pilot valve operating lever and was holding it in the open position.

fI0 f Repairs requir:d removing valve from service; hence condi.tion re-portable

[§]]] 1 per TS 3.1.8 and No threat to public health or safety. I 1 a 9 80 rim 7 B SYSTEM CODE le IJI@ 9 10 *_: CAl)SE CAUSE COMP. VALVE CODE SUBCODE COMPONENT CODE SUBCODE SUBCOOE W@ lJLl@) ly I A IL Iv IE Ix I@ LX.J@) t!2..J@ 11 12 . 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT t:::"\ LERiRO CVENTYEAR

-REPORTNO.

CODE TYPE \!.:/

18 I 0 I I I I 0 I 3 15 I I /I I 0 I 3 I w 21 . 22 23 24 26 27 28 29 JO .L=J 31 REVISION NO. 12..J 32 ACTION FUTURE EFFECT SHi.JTOOWN ATTACHMENT TAKEN ACTION ON PLANT METHOD HOURS SUBMITTED FORM SUB. PRIME COMP. SUPPLIER.

COMPONENT MANUFACTURER IZJ@

• lo Io I ol o I IJiJ@) LLJ@ JJ 34 35 36 37 40 41 . . 42 l.1LI@ ID 12 1413 '!(§ CAUSE DESCRIPTION AND CORREC"rlVE ACTIONS @

• 43 ""' 47 DJ]] I Within the solenoid assembly, the spring guide had come loose from its ITIIJ o::rn g_uide plate due* to a failed* *brazed joint. , As a result, the plunger springi sli nped to one side and was not exerting u:cwa,..d fprcie -On the sol enojd o:r1J I plunger to keep it off the pilot operating lever. The spring guide was [III] I brazed back onto-the guide plate. CPCo dwg. 950 Y-35 refers. 8 9 FACIL.1-rY

'3()\ METHOD OF (.;:;\ STATUS * .. "-POWER QTHER STATUS \:!;:/ DISCOVERY DISCOVERY DESCRIPTION OE Lill@ I 0 I 0 lo l@)ICold Shutdown I LlLJ@I Routine SUI"Veillance 8 9 10 12 13 "" 45 46 ACTIVITY CONTENT

• RELEASED OF RELEASE AMvUNT OF ITTIJ UJ@ NA . I 7 B 9 10 11 *44 BO so 45 NA l.OCATION OF REL.EASE @ .. 80 PERSONNEL EXPOSURES Q.. . NUMBER DESCRIPTION

[ill] I o I ol o l0Lz.J@) NA 7 . 8 9 11 12 1_3 ____________________________________

80 ... PERSONNEL INJURIES NUMBER DESCRll'TION 41 DJil I o I 01 o I@ 7 8 9 11 LOSS OR DAMAGE TO FACILITY 1.i3" TYl'E DESCRIPTIO...

'\:::) ITli) [Ll@ NA 7 8 9. 10 BO PUBLICITY Q\

OESCRll'TION [ill]

_____ N....;.A....;._

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