ML20078S826

Discusses Info Re ISI Program ASME Code Case N-416-1

ML20078S826
Person / Time
Site:	Mcguire
Issue date:	12/16/1994
From:	Mcmeekin T DUKE POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9412290235
Download: ML20078S826 (5)

Text

_

11 l

Duke kwerCanpany T. C McMam 1

McGuire Nuclear Generation Departnent

\\' ice President 12700llagers FerryRoad(MG01\\P)

(704)8754800 iluntersville,NC280784985 (704)8754809Far t

DUKEPOWER 1

i i

December 16, 1994 i

j Document Control Desk j

U.S. Nuclear Regulatory Commission Washington, DC 20555 j

i i

j

Subject:

McGuire Nuclear Station Unit 2, Docket 50-370 Inservice Inspection Program ASME Code Case N-416-1 i

i i

Dear Sirs; I

ASME Code Case N-416-1, Alternative Pressure Test Requirement for Welded Repairs or Installation of Replacement Items by Welding, Class 1, 2, and 3 Section XI, j

Division 1 was approved by the ASME Code on February 15, 1994.

However, this Code Case has no yet been endorsed in j

Regulatory Guide 1.147, Inservice Inspection Code Case j

Acceptability ASME Section XI Division 1.

Therefore, pursuant to 10CFR50.55(a)(3), it is requested that Code Case N416-1 with certain stipulations be approved in lieu of i

individually submitted Requests for Relief for McGuire Unit i

2 End of Cycle 9 (2EOC9) through Unit 2 End of Cycle 10 (2EOC10).

i In past situations we have found it necessary to ask for i

relief from post ASME Section XI hydrostatic test following i

repair or. replacement activities due to various reasons of 2

impracticality in testing.

These situations are typically l

unexpected.

As a consequence, some of these situations have necessitated prompt communications with the NRC to avoid exceeding limiting conditions of operation or more f

frequently avoiding startup delays.

I i

i I

i i

b

/1 A l A f

,hk 9412290235 941216 PDR ADOCK 05000370 g

PDR 3

l w mm-

.y.

~

r i

c l

U.S. Nuclear Regulatory Commission December 16, 1994 page 2 i

l Use of hydrostatic test deferrals, which are presently allowed in the current Code Case N-416 for Class 2 components, are not a satisfactory solution'because the test must eventually be perfermed, and it is the performance of the test itself'that is considered burdensome.

Code Case N-416-1 provides increased testing flexibility to the Licensee, which should considerably reduce, if not i

eliminate, relief request requirements associated with post

- welded repair / replacement hydrostatic testing.

This is accomplished while maintaining an acceptable level of safety and quality as determined by the ASME Code.

McGuire Unit 2 request to application of Code Case N-416-1' with the following stipulations:

1) In lieu of the 1992 Edition of Section III as per paragraph (a) of N-416-1, McGuire Unit 2 will use the 1971 Edition, Winter and Summer Addenda of Section III.

(the Construction Codo).

2) Paragraph (b) of N-416-1 requires the use of the 1992 1

Edition of Section XI, in accordance with paragraph IWA-5000.

McGuire Unit 2 will use the 1992 Edition of Section XI for application of IWA-5000, IWB-5000, IWC-5000 and IWD-5000.

However, when these Articles specify j

the use of 2000 and 3000 series Articles, the appropriate i

paragraphs in the 2000 and 3000 series Articles of 1989 Edition of Section XI will be used.

3) When using the 1992 Edition of Section XI, only those paragraphs to perform system pressure testing due to Code j

repairs or replacements will apply.

4) As an additional requirement, when N-416-1 is applied, additional' surface examinations will be performed on the root (pass) layer of butt and socket welds on the i

pressure retaining boundary of Class 3 components.

Unit 2 is currently in End of Cycle (EOC) 9 outage.

It is requested the McGuire be granted interim approval to use i

Code Case N-416-1 from date of approval to the end of 2EOC10.

i L.

U.S. Nuclear Regulatory Commission December 16, 1994 page 3 I request that the approval of this request be forwarded via FAX number (704) 875-4165 to the attention of J.E.

Snyder.

Manager, Regulatory Compliance.

i Very truly yours, l

gpf)W T. C. McMeekin i

i 1

l l

l l

l

l c

l U.S. Nuclear Regulatory Commission December 16, 1994 page 4 xc:

Mr.

S.D. Ebneter Administrator, Region II

(

U.S. Nuclear Regulatory Commission l

101 Marietta St.,

NW, Suite 2900 l

Atlanta, Ga.

30323 i

i Mr. Victor Nerses U.S. Nuclear Regulatory Commission Office of Nuclear Reactor Regulation Washington, DC 20555 l

Mr. George Maxwell Senior NRC Resident Inspector, McGuire McGuire Nuclear Station l

j 1

l l

U..S. Nuclear Regulatory Commission December 16, 1994 Page 5 bxc: with attachments J.E.

Snyder J.M. Washam K.L. Crane R.D. Klein (MGOlMM)

R.

Branch (MGOlMM) l C.B.

Cheezem, Jr. (MGO2ND)

W.G. Goodman (EC07J)

G.J. Underwood (ECO5P) l G.J. Holbrooks (MGOlMM)

H.H. Wallace (MG01CP) l J.O. Barbour (EC07J)

G.A.

Copp, III (EC050)

File: Relief Request PLL (EC050)

!