05000277/LER-1979-048-03, /03L-0:on 791030,during Relamping of Main Off Gas Stack,Personnel Discovered Broken Isokinetic Sample Line. Caused by Crimp at U Clamp Support Bracket & Fatigue from Expansion,Contraction & Wind Loading

From kanterella
(Redirected from ML19253C922)
Jump to navigation Jump to search
/03L-0:on 791030,during Relamping of Main Off Gas Stack,Personnel Discovered Broken Isokinetic Sample Line. Caused by Crimp at U Clamp Support Bracket & Fatigue from Expansion,Contraction & Wind Loading
ML19253C922
Person / Time
Site: Peach Bottom Constellation icon.png
Issue date: 11/29/1979
From: Cooney M
PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19253C916 List:
References
LER-79-048-03L, LER-79-48-3L, NUDOCS 7912120347
Download: ML19253C922 (1)


LER-1979-048, /03L-0:on 791030,during Relamping of Main Off Gas Stack,Personnel Discovered Broken Isokinetic Sample Line. Caused by Crimp at U Clamp Support Bracket & Fatigue from Expansion,Contraction & Wind Loading
Event date:
Report date:
2771979048R03 - NRC Website

text

Unit 2 LICLNSLL LVLii a HLi'UliI P.e po r t No. 2-79-h8/3L

, CON 1 H O L H L OC V.. l l

}_ l l

{

H 4.L A'al PHWI OH IYPE AL L HLOUHllO iPH OHPiAlloPM b lPlAlPlB lSl2l@l0l0l-10 o l 0 l 0.1.9 l - 0loj@ bl1l1{1 1 l@L I l@

8 9 LICENSEE CODE 14 th LICE N5L NUUllLH h

/6 LICENSE ivPE JH

%F L^f '. 4

.rri

.O 0,2 i L l@l0 I 5 01 -I ol2 17 LLj@l 1 10 l_Ll_0 l_7 I 9 l(n)(1 11 12 19 7 19 l @

EVENT DESCHIPTION AP O PHOUA L

. (U NCES Til I With Unit 2 at power and Unit 3 off for refueling, during relamping i

T5'l I operations on the main od'f-gas stack it was discovered that the isokine-TTI I tic sample line was broken. A diluted but representative _cample contain-l 5

l ed by the tracing and insulation was still obtained. Higher than ind-l Fi~l I cated noble gas, iodine and particulate release _ rates __o_ccurred. It is I

i l believed that no releases occurred _during this period in excess of Tech' l

.Tiq l Spec Limits.

I 18 9 80 SY3T E M C AUSE C W.E COYP

% A (,g [

CODE CODE S U I.i CO O L (QUPO'J { *J T CT)DI S Ufi C O D E UFCODE TO In Ic l@ l Bl@ l A l@

PlIlPlElXlXl@ [_A_j6 y @

8 9

10 11 12 TJ 1 64 l

20

'(OtJfNilAl UCLlia ff t fd l HE FOf t1 H I. k '5 ' O N tlH LVENT YE AR Ht POHT NO LO!)E TYPE NO O a'j'g/HO 1719]

l-l o lh 8I l -I 0l3I I Ll I-1 LoI i,',

_ 21 22 23 l4 d6

)!

4 2**

30 hi 32 TAK rd A TI O 4 PL JI P.

Y li t1 H Oi!H S //

LI.11T t Ft8 LH [f PLI i

M

'F T llR E H IBl@ W @

lZl@

IZl@

I 01 01 0 01 I Yl@

[g@

l A@

[B l1 l3 l0 l@

3J 34 39

o

_l i

a r) 41 42 43

.t.t 41 CAUSE (JESCHIPTION AND CoHRECTiVE AC TIONS h

~lT] [ It appeared the cample line had been slightly crimped and subsequent ex-1 g l pansion, contraction, and wind loading caused failure. Temporary repairs g were made within 2 h.a aid pemanent repairs made the next day. A weekly I

y l test is being perfomed to insure line intergrity. Appropriate adjust-l q q g ments to release rates will be made.

I a 9 eo

$1 i N f"W, t H OTHfHLIATJ 31 _)

Il lp iCOV t il y Di '.LHi*' T IO*J TG I E g [1 l 0 0 _@!U/3inRefueling LAj@[Found during relamping op.g_ ration I

" 40rivi i v JiiNT avoumoractivirv@

toca tion or Ho taa @

HE tt e.r n os m i w,i El LzJ @ LzJ@

NA l

NA I

F) 9 10 tt 41 45 80 Pl H' f)NNI l l a 6M)",l fil( i, NUVtH H I (Pf b[:,Lliil' Tit W U E] [0_.10 l OJO!z i@l NA l

11

')

I1 1/

11 11 0 Pt H3ON*st t l'J DD H L 5

,D pr.

c n

n n

1 C.

OI Ni mnr H OE scHiP fiON U

Mt

.E,l,.lo 10 10181 NA

,m L O.". OI OH il A V A(,L lll I A f f ll I V TVFI Dt %(,, HIP llON 1542 162

.E i zle!

NA 91ew1 N i 4 C L P.4L ()N L Y PUBillif Y l'.sy t p litstillPitON

/.

II M (J_] h l NA

/m, I

IlII I I I I I I l !,,

7 H

')

10

~

I' d bl 00 l1. J. Cooney /

(215) 841-5020 N AP.it OF PIIE P AltE H PHONE o