ML20010B395

LER 81-033/01T-0:on 810727,personnel Access Airlock Doors Found Ajar.Caused by Worn Interlock Plunger Mechanism That Became Loose.Plunger Mechanism Tightened

ML20010B395
Person / Time
Site:	Oyster Creek
Issue date:	08/06/1981
From:	Frederick Sullivan JERSEY CENTRAL POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20010B387	List: ML20010B386 ML20010B395
References
LER-81-033-01T, LER-81-33-1T, NUDOCS 8108140436
Download: ML20010B395 (1)

Text

~

U NUCLEAR HEGULATORY COMMISSION

• CRC FORM"36G-n.ns* t.lCENSEE EVENT REPORT

~ . . .

CONTROL BLOCK: l i

l l l l l

.h l (PLEASE PRINT OR TYPE ALL REOUIRED INFORMATIONI

)Io I i I l N l J lO lC l P l 1 l@l 0 l 0 l - l 0 l 0 l 0- l0 l0 h l0l0l@[4_ 26 26 l 1L8CEN5E l 1 ! 1TYPEl 140j@l6 3 GT l Sd l@

7 6 9 LICEt45EE CCOE I4 IS LsCENSE NUMSEA CON'T

.E7 8 so Ibl@[.0l5l0l0 60 64 l0 l2 1119 l@l OOCKET NUMSER 68 6901712171811 EVENT DATE 74 l@l0 l REPORT 75 81016l QATE A 80 l l l@

EVENT DESCRIPTION AND PROSA8LE CONSEQUENCES @

I Lo_ Q) lOn July 27, 1981, the personnel access airlock doors were found aiar. 'Ihe G.

l gi S.S. inspected the Interlock Syst s and found it to be operating satisfac- l IO i4 i i torily. The ability of secondary containment to perform its intended func- l

,,,3,

. tion of minimizing a ground level release of airborne radioactive material l g

l c e e i was degraded.

f lol7i i I

10688 [ 80

• I$I,'[ ."[So*! s0NSEE Cor.tPcNENT :coE s[E[c'oE sENo'oE io19i l S l A l@ l E l@ IB l@ lP lE lN lE p lR l@ W@ { @ 33 18 19 20 9 3 3 30 18 12 SEQUENTIAL QCCURRENCE REPORT REvlslON EVENT YEAR REPORT NO. CODE TYPE NO.

LE4 20

@ as,g ,2118 l 1122 1-1 1013131 l/l 10111 ITI l-l [0j_

23 24 26 27 28 09 30 31 32 HQURS 22 SE 4 POR S. SU U MAN K N ACTC l33B l@l34 Fl@

O P lZ l@

7 E l26Z l@ l 0 l 0 l 0 lT l 27 40 lYlg 48 ]2g 4

l3Alg 4

lBlIlYlY[g 44 47 36 CAUSE OESCRIPTICN AND CORRECTIVE ACTIONS h

i ,Oi l The interlock plunger mechanism was worn and had becme loose. The plu-  ;

ii ii l l nger would not exturd lully or properly engage due to misalignment. This  :

.,,,,,i allowed the interlock system to be unintentionally defeated. The plunger ,

i,,3i l mechanism was tightened. A Work Order was issued to replace worn parts. And i gl an Engineering Task has been issued for Interlock Syst s evaluation. ,

F 8 9 Y E STA  % PCWER NA OTHER STATUS OtsC OperatorO$servSta.onDESCR PTIONg h

• I 5 l [.E,,j@ l 0l 8 l 0 lgl l lA[gl

' * ' " * *$ $ EO ACDVITY CO' TENT RELEASED 07 RELEASE , AMCUNT OF ACTIVITY LOCATION 0P RELEASE NA l l NA l 1 l6* l* l Zl h lZ '

l l

'4 ** a0

• ERsONNEL ExPosuEES NUM8ER TYPE NA g i l 7 l l Oi 0 l 0' l@Whl" DESCRIPTION so l

PsRsoNNE'L iNauE Es NuesER oEsCRiPuoN@

Jlal10101Ol@l NA l l 8 9 11 12 LOSS OP CR OAMACE TO #ACILITY TYKE DESCRIPTION NA 1l9llZlhl

. , io 8108140436 810EIO6 **

l PusuciTY PDR ADOCK 05000219 NRC USE ONLY 45 S PDR DESCRIPT80N es5UED 21 o l [,Y_jhl Weekly News Release l l l l l l l l l l l l l l L,'

Francis X. Sullivan

• puove.

60N693-6037 cme go Pecto2 nen _._.. _ _ . . = .. __. g