ML20086L116

Telecopy AO 73-30:on 731224,increase in Reactor Bldg Ventilation Stack Airborne Release Rate Noted.Caused by Low Pressure Leak on Torus Vacuum Breaker Penetration A. Penetration Readjusted,Cleaned & Retested

ML20086L116
Person / Time
Site:	Peach Bottom
Issue date:	12/31/1973
From:	Ullrich W PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
AO-73-30, NUDOCS 8402070402
Download: ML20086L116 (2)

Text

- -

l.

. _ .. .. . .. . . .. . g s ** ..

• ~

PdILALTIPIIIA T:LTUTRIC COMPA)

%, , g')

d g

Popch IMttom Atomic Power Ettation ,

/j

• Deltn, Pennsylvrsnin ()

} fA'M_' l-l., 1 ?I1 **

e-Y<

h. . g . d . 4 u ' a. R December 8,1, 1973 .. ~W4.E w.

Mr. Jeune.o P. O'T<eill y , Dirr.otor e [ } } ~7 a g(( -

g. -g  :, .e, - .

Utaited Eta t ea Atomi c Energy Comminnion ,* . , . . .w Tiire c t ora te of Heguintory Operations >d '

631 P4rk Avenue T.'.h ; f h '

19+00t '

King or Prummis, Pensampivania .

.j.. y q; y ,..

A cuh iro t Abnorm 1 Occurronce .~4-TTnur finti fi e nti nn ,.

-lc p<'( 3' .'

Confirming my t elephone convernation with Mr. H. T. Unr1non ' '

A.E.U. Hegion I Fegulatory of fino on Deacmbnr 31, 1973. A;.+ , .. .

Jie ferer.c o t T.icenno Numbnr DPR--%, Arrendrietat. Hurnber 1. A

h, Technical Specification Purregrnph 3 7.A.2

s. .w .:,.((i

+ . . . . w On beo en.b e r 2h , 197.3 et 6:05 a.m. during reactor preecure veccel re2.ier 4 a . ;rg .

valvn t e n t ir.g . nn innereuse in the resactor buildiat* ventilation otenk .gfhg. ~.

asirborne releisse rate wnn not t d.

15% power est thin time.

The renetor van opnroting at npprovimately fm sv '.- '

A ocheduled remeter oorem wan initiated at 9:10 ra.m. ]f.'??- , b ', l" c., ,

on Docent.er Die, 397D.

n ? p,.a

• An inventiratinn nf drywn11 and torum penetra tionas di asclo ss ed that the "A" 45 ."M' P i .

torua vacuum brenker petaetrestion ex.nibited'.a low preamtro J oe.k on both the chet.h valve innd but t er1'ly valve 1.n thin nosernb37 Total 3cakere of .@. .

d-I.

both valves wsu meaeured sat 1200 cc/m with a 1 pait- tcat pre orsure. Initial g g;._ J9

• inveastleution itanicates thst. thio 3 cnksanc vari chumed by n ponnibin . ;, ..

mi ne d ,1u n t me n t or the butterfly valve opersator asud d.ir t ou the acht of the 34._J .4 < .j

( check vesive. Fendjuottennto, clowning, end retenting or thann pen e t ra t i on es  : . - L'~

vill be rati craetorily nocor plir.hed prior tu tnking thw reac tor criticaal.

q ;,' , . ",. -

m ,. .4

. '- - " +,, L.3

%. C.,1. ,

f d <f. $$

e . . . .

U V. T. ifl1 ri ch , Superintendent

.'; p##. .:

Ponch Lottor* Ator=ic Pow u t- Etation .4 g i *

. A., ,

il; ? ,.,'.1%  :

. . .f. , W i --

t .

h , ; .)

,4 $..< n, -

r ...

n_ y,

.s y  ;..,. . . . . . .

g . ,' .

.t

.-; "%. +,,,. Q, )r.?t A! ,.

1 I

i 8402070402 731231 PDR ADOCK 05000277 s PDR I

/ Q n.

j <'

I (h'

/

I g i-(

1

- . r ,. g . a. ..w a . m .  ;,s.... g . +.;

hh . y k h A.

~ ~

.h

,?

, ' d' f[

,.(( ,.j

[$.NN.

. p.yw93_.7y,. g.[.;y[. p. ..;p.4.yglf j

~

O O o

.g F a' c oa(="'ac '- F a' act'oa-5" ra' a co ' t"'i-HEMO ROUTE SLIP ._

,.....,,,.. x r o, i . e,m . ,4..

n.,n, air-n an. sin .. : >in An si n24o n ,.. ...,,,,,,.

inniao atuan,S T o (u... .no onni PilIIADELPilIA ELECTRIC COMPANY R0 Chief, FS6EB RO:llQ (i) / PEACll B0rr0M 2 RO Fi1es V , , ,

Central lhil & Files A0 73-30 Regulatory Standards (3) ptMaRKS smifiAL2 TO (Name saJ waits Directorate of The above abnormal occurrence is forwarded Licensing (13) for information,, Distribution will be made OGC pra Regional Directors

,(II, III, IV) by this of fice to the PDR, Local PDR, NSIC, inniaa ""*""

30 gu,,n..nou,n3 DTIE, and State Representatives af ter review by the licensee for proprietary information.

, no u is. . .no on.,i nu ans -

l f t. & <" '

E. J. Brunner , -

Region I PHONC 9e0, D'IE

, 8-337-1246 1/9/74 c o : "" o - "' *" ..

n oi t. sict ,o. .aniu m n o o C1 m.c, -

a i.

cio 4 D}

-' 7 sin 4 E . *. .=== 3 O O

"1k-h

.) 4 N

sw m c, a.

$9 933 @9 t A

l 1

i

I.

4i 4