ML20090D864
| ML20090D864 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 10/21/1974 |
| From: | Carroll J JERSEY CENTRAL POWER & LIGHT CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML20090D872 | List: |
| References | |
| AO-50-219-74-54, NUDOCS 8303030724 | |
| Download: ML20090D864 (4) | |
Text
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To:
J.?tes P. O'Reilly Directorato of negul. tory Operations Region 1 631 Park Avenuo King of Prussia, Penne,rivania 19406 Fron:
Jersey Central Power 6 Light Company Oyster Creek Nuclear Generating Station Docket #50-219 Forked River,IIcw Jersey 08731 i
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Subject:
Abnormal Occurrence Report No. 50-219/74/54 i
ne following is a prelininary report being subcitted in co pliance with the Technical Specifications, f
paragraph 6.6.2.
i Prclininary Approval:
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J. T. Carroll, jdr.
Date cc: !!r. A. Gintbusso 8303030724 741021 PDR ADOCK 05000219 5
PDR g$-J/f J.u s
O Inii al Written Tira of Report Date:
10 m /74 Occurrence:
1510 OYSTER CREEK NUCLEf.R GE ?EI'ATI!:': STATION FORrfD RIVER, NE;f JEREUY 0S731 Abnnmal Occurrence Report No. 50-219/74/ 54 IDENTIFICATION Violation of the Technical Specifications, paragraph 3.6. A.3, OF OCCURRE?CE:
failure of the stack gas an=ple system to continuously conitor stack releases i;hile th reactor was in an unisolated condition.
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'Ihis event is considere.1 to be an abnor=al occurrence as do-fined in the Technical Specifications, paragraph 1.153l
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CONDITIO:G PRIOR x
Steady Ctate Powcr Routine Shutdown TO OCCURRENCE:
llot Str.ndby Operation CJid Skedwn Jer,d -thnges During
__ Refueling Shutdown Routino Power Operation Routine Startup Other (Specify)
Operatica 1he major plant paracetcrs prior to this event were as fo11cus:
Power:
Core, 1904 Init Electric, 642Tio i
4 Flow:
Recirc., 16.0 X 10 gp:2 i
Feed., 6.99 X 106 lb/h*
i Stack Gas: 14,100 pCi/sec j
i DESCRIPTIO:t At approxicately 1510 on October 18, 1974, an equiptent opera-0F OCCURRE:.JE:
tor noticed that the stack gas sanplo cu p si.ec:cd to be cching i
excessive noisc. Ito then telephoned the control room to rcport his observation. During this telephone conversation, the
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equip =cnt operator noticed that the st::ck gas sar.ple pu p stopped nmning. A stack gas sarple loi flow alcra was roccived in the cc.vt?c) mn enincHent yk.b :.h trippin7. of the sr::,p3r
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The shift foreman then vr.t m tr.s location of th : sud p3 urple pump and ro. started t:u gurij: 3t9 7 scing the ther:42 1
avrlosd reset switch in the CN positi=, %e total tox t d tiec that the str.ck cu serple p:rp vu. et running is cath:md to be approxitately one minuth l
APPMiEN-l* CESE Dcsiy*n IP red,ttc 0F OCa T C C :
Fanufacture (Dnen:al Servi:e Cec 35thm Installation /
' Str. Qwiromnntc1 Construction Cryseent Fai.ure Operator Odce (Specify) na c.2use of this occurreren is win 2mstigatica, m3CE~I &
A ruview of tJm stack gas rsdisth x 2;r recorder trc a OCE C P. S C O.
derved the levcis of both maite chanach to be rolstivfy constant (. t 500 and 400 cys) 150r w zz6*s.ing b Corc cn1 den the p=p trip.
In a further eHert to determine if excmin s*a/.h nbnws night havo ow=cf. &nOng the nygtaJrate eno cinuto patied that the stack gas srmplo pump w2s rot eper-sting, recorder tracos of rdi2t?;:.n.4.naercring systers cr:=draxC.
with two gaseous streats iclersd d=mylr, the stack were re-vicved. A mica of the off ru rrSMim cr. iter rcerir traces showed tJutt at approx 1:stKy S xlzstes prior to this er:ct, tM brgels of both crite.: ct.urnis were TcIntiw*y constsnt (at npproximately 1.:t I d axi'i:) with no spiUrt-
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h 2.idit:Ica, a review of the r: Ice = StS iang ventilatica exhaust radf ation r.onitor recrk:r trers showed that at t';2 t!:e of e.is event, the levels cI brch.nandtor channcI: ven
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relatVIh c$ustant (at cypoxt:2colyg : c/hr).with no spil.ing. P.ved on these considerations and the very shen period.cf tize that tb3 stack gas Sx pI4: p2:p was not opntinin the safety sagdficence of this evet 3r censidered to be mini-Es1.
CORTECTOT trC710N:
The stack gas sample pump was restarts-l by placing the t.Wr41 crerload rosat switch in the m positice Following routut.
the pu=p was exanined by rainteremo penonnel, tio abnx=d-ties nre Identified in this e%c:'m,.
FAlum DJD 7b be supplied, if applic61a.
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