05000269/LER-1981-016-01, /01T-0:on 810903,magnetic Particle Testing on 1A2 Reactor Coolant Pressure Seal Housing Bolts Revealed Linear Indications.Bolts W/Rejectable Indications Will Be Replaced

/01T-0:on 810903,magnetic Particle Testing on 1A2 Reactor Coolant Pressure Seal Housing Bolts Revealed Linear Indications.Bolts W/Rejectable Indications Will Be Replaced

ML20010J023
Person / Time
Site:	Oconee
Issue date:	09/17/1981
From:	Kutzer J DUKE POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20010J016	List: 05000269/LER-1981-016, Forwards LER 81-016/01T-0.Detailed Event Analysis Encl 05000269/LER-1981-016-01, /01T-0:on 810903,magnetic Particle Testing on 1A2 Reactor Coolant Pressure Seal Housing Bolts Revealed Linear Indications.Bolts W/Rejectable Indications Will Be Replaced
References
LER-81-016-01T, LER-81-16-1T, NUDOCS 8109290512
Download: ML20010J023 (1)

LER-1981-016, /01T-0:on 810903,magnetic Particle Testing on 1A2 Reactor Coolant Pressure Seal Housing Bolts Revealed Linear Indications.Bolts W/Rejectable Indications Will Be Replaced

Event date:
Report date:
2691981016R01 - NRC Website

text

'

Mmc #0AM 364 U. S. NuctEAA R6cutATORY CCMastasace.

u-m LICENSEE EVENT REPORT EXHlBIT A ccNTsot stocx: l l l l l l l}

getEAss raiwr en tvet ALL mEcuinaO iMacauanoN l S j C [ Nl El E l 1[g.0 l 0 l ; t, ); 0l Og 0 l -l 0; Ojg 4 l1 ; l g1 g, w g g

a i we.,.. coo.

i.

1 wc...

...a a =

wu,.a n n a ecN-f Lo.J ij

% Q.I O l 5 l 0l 010f,2l 6_I,4p 0 l 9 l 0 l 3 I 8 l 1 @l 0l 9 l ll 7l 8 l 1l@

I 8

8 3

00 cal 57 wuMoon __

8.

E.

tv tm? DATE Je 75 aspc.ycarg EVENT CESCMim0N ANO *mCSAaLE CONSEQUENCd h

('oTO Lon September 3,1981. magnetic particle testing on #1 seal housing bolts on ;

gypp gthe 1A2 RCP showed linear crack indications on 11 of 12 bolts tested. These

,,, linear indications are circumferential in the shank to head transition area i,,,gof the bolt. Thiseventinvolvesapotentialdegradationofthepressureboung-ary, but it is consider, that any failure would result in a leak rate detect-gg lo !,1 lable by normal methods with ample time for a controlled unit shutdown and thup

,,,,,,the health and safety of the public were not affected.

'713" W!

.8.^E!.

l C l T l@ [X,_J@ l Z l@ l P J U l M l PlX l X l@ M.@@ J'"' '@

ca

,o.. reco.

su la1 1

@ l

...o ;_,,1 I.

":= 6 3l t= kr n:r-7g l

gg 18 1 l-l I,0 il ;

l-l [T_j g

g 2i a

m a

2, a

a a

2.

u

=m

s

=ra 0g[.n= x.w::,em..

.,9.7

,9~;.c:c:..

L^_,I@l_Xjg lZlg g g l3 Oft) l

@g l Ni@

lL l@ lW l1 l 2l0 f@

M M,

3 2

3 e.

4e 43 43 em

.3 causE oEscMimoN ANo c:samtenvE Acnous 27 g l Bolts with rejectable indications will be replaced for all Unit 1 RCP's.

1

,,,,,Further testing will be performed to determine the nature, extent, and cause,

I of the bolt crack indications.

g u,,1.!J l i i i. i I I

's7 ru.

4,cwen eThamsvATU.

MY OeSCovtMY ot3CRtme=

(,LQJ W@ l 010 -l 0 l@l N/A l W @l Inservice inspection l

l 4

g a

u a.

l L.Lj.8J [Z_,j @ [7;,J@l N/A 4-ou=rce.cnvity @ l tocar,o= on met:As. @

..LaAsso os a.L:As.

l N/A l

'.*i..A,o.U a fiTTl10l0l0l@[7,,,j@lo.v.,,,ric @ N/A u-u n rm l

l nso==.'Li= S es one

.,r, @

u..

lo I o I nih N/A l

l i

b. * "ib'Ah" '"@

~

..z_j@l N/A l

[

i e i.

,mue7@$.Scairt,ca @

""" "8'0"'*

[N,,j l

N/A I lllltIIIIIill 2 o i.

a n J. F. Kutzer (704) 373-7139 NAMG OF PMPAMEM PMCN E:

8109290512 810917 PDR ADOCK 05000269,

PDR

.S