ML19242B398

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RO 50/219/79/20-1P on 790613:secondary Containment Integrity Not Maintained for 11 Minutes When Both Reactor Bldg Railroad Airlock Doors Were Open.Caused by Inadequate Procedure for Operating Airlock Doors
ML19242B398
Person / Time
Site: Oyster Creek
Issue date: 06/14/1979
From: Mcnair R
JERSEY CENTRAL POWER & LIGHT CO.
To:
Shared Package
ML19242B394 List:
References
NUDOCS 7908080432
Download: ML19242B398 (2)


Text

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l Initial Telephone Date of Report Date:

June 13, 1979 Occurrece:

June 13. 1979 1

Initial Written Tlaw or Report Date:

June 14.1979 Occurrence:

1039 hours0.012 days <br />0.289 hours <br />0.00172 weeks <br />3.953395e-4 months <br /> j

OY5TER CREEX MJCt. EAR GENERATIM 5TATION FORKED RIVER, NEW JERSEY 00731 s

uncertabi* Occurvance Report No. 50-7,19/77/ 20-l P J

J TCENTIFICATION

' iolation of th+ T,hnical So ci fica tions, parag ach 3.5.B.1.

secondary contaia-ent intecrity was not maintained for 01" OCC11RRENCE:

when j

eelev=n minutes wh e both reactor building railroad airlock doors-were cpon.

i This event it considared to be a r-porta 6te occurrence as defined in the Technical Sa.cification s paragraph 6.9.2.A.Z. and 6.9.2.A.6.

1 CMaiTIms anTOR X

"teady sr-e Power Routine-Shutdown 70 OCCunnDCE:

Wot.~ tandov Goera tion Cold S hu t<$<rwer

_ 1.ond Changes During Re(naling Shutdown Routina Powee Oceration Routina 5tartup Other- (Speci fy)

Opera tion 4

Flow: aacirculatino 14.4 w 106,cm q

i

~

6.96 x 10

/hr.

F==dwater 3

1 I

Fowar:

Generator 643 Wa-b Reactor-1870.2 Wt Stack Gas:

3.3fr x 10 uC1/tec.

d CE3CDIPTim On W e<in e teta y..Io n e 13. 1071

=t accroximately 1039 nours. the

, Of 0CC11CRACE:

s accar* = rv c<m e a f - *e t farecriev was he ac. red wnan both reac tor bu i 1di er: en 1 : rn.s e* a<rinek acne: vere open n ims1 aneous 1 y.

T're tener raiTrea<f airine*= deor wa.; cre.- and tr** outer door was in the close pnsition several dayt.qvine to tne incident.

The outer doo r-twuno coen we n anr-31 reactor build.nq vent:14 tion sy' tem was swire.b.a to th semedby ges tv-a t-en e svs tem in ord-r :n

%UCQ V ran% $E-a !3 I

en the r#5Cter bu4Iriinq renair the (laf"p e r t "r 1-14 A t-I n40., the Conten? U ncet Operators were preparing and (n.' a n nederiv shutenwn wnile investicatinc the cause for lost of tornefarv enn ta i naaee t,.

The shuttnwn.at temina ted at 105~/ when i

tMe inner a i r l oc k' cf nn e was tornand in the clnte position.

The ramrter bu l l ettan v ttist. inn was rec enre<i to nn m ! operaticn a t 1107 hours0.0128 days <br />0.308 hours <br />0.00183 weeks <br />4.212135e-4 months <br /> a rrt standhv ga s trea tren t was s*curen.

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Reportabl. Occurrence Page 2 Report No. 50-219/79/ZO 1P APPAQU(T CAUSE Design X

Procedure

~

OF OCCURRENCE:

Manufac tu r.

Ifnusuql Service Conditioet Installation /

Inc. Envircoment41

~ Construction Cowent Failure Operator T Other (Specify)

The procedure foe operating tb reactor buildina refiroad airlock doors was trad.cuat=.

The procedure fails to state the orrect cathed in wich tha raiiread airlock doors are to be secured.

r il.4 to wcure the upper mechanism Personnat oo. rating tne doors a

on the outer door.

condary coat = i-=a't i= canuired en minimira groun<i hval ANAL.! SIS 05:

e 4

PCCURRSCE:

r=Ica<a of airtnroe radicactiva materials, and to provide for controlled,. =l=vated r=Imas* of th* buildino atmoschere imder accident constitions.

The abil I ty af :.cendary contair. ment to paefom i ts funct4n wi tn both a f ricek doors co*n was decraded.

Consiriering th= leaoth of tima concerned, the tafety sigtsificance of this event is considered to be Mn%I.

4 l

CORDECTTVE IMor ct:=monents daeaoed <1 urine tha incio at wea repaired and j

ACTION:

a s*<rndary leak rate Past was carforW to check the Integri ty

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of the secondary conta f mee t.

i i

a FAILUPE DATA:

N/A l

I n

Prepar d by:

0=en:

June 1.t, 1979 R. C. MHate a

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