ML19253C922

LER 79-048/03L-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

ML19253C922
Person / Time
Site:	Peach Bottom
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: ML19253C915 ML19253C922
References
LER-79-048-03L, LER-79-48-3L, NUDOCS 7912120347
Download: ML19253C922 (1)

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 8 9 LICENSEE CODE 14 th LICE N5L NUUllLH h /6 LICENSE ivPE JH 1 l@L I %F L^f '. 4 l@

.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 i,', 1719] l-l o lh 8I l -I 0l3I I30 Ll I-1 LoI _

_ 21 22 23 l4 d6 )! 4 2** hi 32 TAK rd A TI O 4 PL JI Y li t1 H Oi!H S // LH i P.

LI .11T t Ft8 [f PLI M 'F T llR E H IBl@

3J W@

34 lZl@

39 IZl@

o I 01 01 0 01 i

_l a r)

I Yl@

41

[g@

42 l A@

43

[B l1 l3 l0 l@

.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 '" "

HE tt e.r n os m i w,i avoumoractivirv@ toca tion or Ho taa @

El F)LzJ 9

@ LzJ@ 10 tt NA 41 l

45 NA 80 I

Pl H' f)NNI l l a 6M)",l fil( i, NUVtH H I (Pf b[:,Lliil' Tit W U E] [0_.10 11 ')

l OJO!zI1 1/

i@l 11 NA l 11 0 Pt H3ON*st t l'J DD H L 5 -

,D pr. c n n n ,

Ni mnr H OE scHiP fiON ,

U

.E,l, .lo ,

10 10181 ,, ,,

NA '

Mt 1 C.- -

OI ,m L O .". OI OH il A V A(,L lll I A f f ll I V .

TVFI Dt %(,, HIP llON

.E i zle! NA 1542 162 PUBillif Y l'.sy t p litstillPitON

/.

91ew1 N i 4 C L P.4L ()N L Y ,

II MH (J_] h l NA /m, ,. I IlII I I I I I I l ! ,, 7

')

~

10 #"#

. I' d bl 00

• N AP.it OF PIIE P AltE H l1. J. Cooney /

PHONE (215) 841-5020  ;'

o