ML18130A549

From kanterella
Jump to navigation Jump to search
Submits Info Re Welds W/Rejectable Indications as Suppl to Previous Repts,As Required by IE Bulletin 79-13
ML18130A549
Person / Time
Site: Surry Dominion icon.png
Issue date: 08/21/1979
From: Stewart W
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
NUDOCS 7909170593
Download: ML18130A549 (2)


Text

~

1st*,._.ioo**+m *

  • ~...... *

~-. -*-*

~~;l<r~,.,~___,_

..

  • i *. *. *,

__,.,,,-~:~*-

t'eN~.tfl/. /r,/~.r,.

.* I

  • .:,~

't

~-.,.

USN RO RE~:~? t,*.

.::~.

,,.epco* !,T!.ANTJ,*. <<~***,.. "".*

~ **,N..,UCTR<CA!ID """**c,.,PA~Y

1 Sw,ry p0.,.,~ Scat.ion P. o. Bux Jl~

.. ~--LB I, U G 21. F. l. : 2 6 * * -... *-* * -- * ----*-- --, ---- ** Surey

  • V!rg:la.ia
  • 23883

.. --~..... -- -..-. *.,.. ***, *-.

\\,:.

.. Docket'. Bo:. 50-280

-~~-f.. {*~~ill~;-* 1{:.*.*

.*.:.*,::.::;.:-~.. *...

Ur...races P. O'Reilly. Director -

Office of Inapection and Enforcement u.s. Nuclear Regulatory CoJ:mission August Zl. 1979

_Region II 101 ?tarietta Street,. Sui.ta 3100 Atlaa.r:a~

Subject:

  • l~E. Bulletin Ro. 79-il Dear Siri tn accordance v~th the prov.l.s~ons of IB Bu11eti.J:L 79-lj 9 VEPCO suppleitents our earlier reports far Surry Power Station with the folicwing:

As of thi.s dace. the fa1lav1ng *elds haV1t rejectable in.di.cat.ions:

"A" S.G.

Tlf1l Ul4 U'it5 n#1l.

"B" S.G.

t.rJ1 U#lO*

~c" S.G.

trf.5 ttff tifll Ul9 14-UFPD-17-601

.. !mall area of rejectab1e porosity., (reported to ~"RC 7-16-79).

.. 'l'lfo am.11 ii.near 1.udica.ti.ons in the root ~rea. (r~porced to tmc 7-16-79).

Smalt area, lack of fusion - reject (reported 7-23-79).

SJ:!all areas of rejectable in.co%:plet.e fusf.cu1 (reported co. tm.c 7-12-79).

14-wFPD-.13-601 Small area of.rejec:table poroaity. (reported to NRC 7-12-79).

Sc.all area of sl,1.g/i.nccJ:aiiJle.te fusion ~ reject. (reported 7-24-79).

14-YFF.D-9-601 Sm.all area of rejectable porosity, (reported to NBC 7-16-79).

SJ!!a.11 area of rejec:table incomplete fusion,, (reported co URC 7-16-79).

  • Sm.alt area ol rejectable incocplete tua:L;iJi, (~epoa:-ted to Nl?C 7-16-79).

V Sca.11 area of rejectable incocplete fusion. (reported to NP.!:

7-23-79).

~q ';:>

=

,. .:, *:*. 79091f0~1q'_.;,' f(}3.

.t1 /"\\

1-/'J nv~.

_j_-~.;.,:-.... ~:~:,.*,;... :* -

y__.,-,

. ~ !

~i

~.<

.\\':.

--~

~

.r

-~

~

)

~

T u J j

l*

~ i i

~

>l

'J(.t.

-~* }i

';~ :.,.

-~ t

\\.~

,J

  • J

~.1 )

1 t

\\:

~,

1;

.-~ *,

~......... ~..

      • -* *- -~*:-.. ***-* '~.

~-.... -.**-

~*

    • ~; -

-"':.O,t'.(.-- *.,,~l"::,,_...,,...,._..

..;. 1-A.ugu.st 21. 1979 "c.. s.G.

14-YF'FD-9-60i (Contit\\ued)

V#ll S,:sa.11 area of siag - reject (reparted 7-23-79).

W#14 Si!ua.11 areas of s1ag/incorrect fu.s~on.- reject (reported

.7-23-79).

th.is C:.ot!pletes che R..T. of all feedw'ater lines ill fl Colttainmea.t..

B.epair vcd:.

. i.s 1-a progress.

'the coca.I. IW'Clher of rejectable welds is 12..

I In repai.ring Vl4,, "An S.G.,. the if.near indications originally reported (7-16-79) ;*

~ere reooved by grinding t.hrough the, entire veld. nie P. T. -pd.or to ve.ld repai.r revealed rej-acta.ble porosity on the elbow side of the rem.a.ining veld m4ter1..al.

//

Continu,ed gr.in.ding carried into the base me-cal of the elbow wi.chouc eliminat.ing

  • the porosity end alsa revealed S mintit.e linear ind.i.c.at.ion.s.

Fu.rth~r grinding

/

  • did not e1icin.ate any of the rejectable indicat:f.ans.. It was decided to replace 1 I

the elbow since th.e indications c:ould not be ret?10ved w.t.t.hi.n. a.11owab1e cede l:lm.i.ts for ai::nunt of elbow material mmavecl for repair 'felding. * *

/ _

I

~-

Yours -very truly*

.* ~---J~M-f;t._w,

  • Stewart:.

S

  • t.:t.ou ?tanager

/*

I I I '

'.... -** -----*-*. _:_---~--.,.,.,....---s---

~

/'

I I

I I

. **--*: --*-- -/--~---i

  • I I

. I

  • /- *_... -. I

. :I I

. ' i I

I