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Text

Forwards Revision 6 to App B of QA Manual for Inservice Insp Program Providing Alternative Repair for Tube Plugging Technique.Sleeving Program Scheduled for Implementation During Spring 1982 Refueling Outage
	ML17309A215
Person / Time
Site:	Ginna
Issue date:	01/15/1982
From:	Maier J; ROCHESTER GAS & ELECTRIC CORP.
To:	Crutchfield D; Office of Nuclear Reactor Regulation
Shared Package
ML17258A459	List: ML17258A458; ML17309A215;
References
	NUDOCS 8201200585
	Download: ML17309A215 (10)
	v • d • e

ATTACHMENT D

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'swv ROCHESTER GAS AHO ELECTRIC CORPORATION

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89 EAST AVENUE, ROCHESTER, N.Y. 14649

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~ s 546 2700 January 15, 1982 Director of Nuclear Reactor Regulation Attention:

Mr. Dennis M. Crutchfield, Chief Operating Reactors Branch No.

5 Division of Licensing U.S. Nuclear Regulatory Commission Washington, D.C.

20555

Subject:

Steam Generator Sleeving R.

E. Ginna~guclear Power Plant, Unit Docket No~ PS5'"g4'4'~

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Dear Mr. Crutchfield:

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Since August, 1980 Rochester Gas and Electric has had a

steam generator sleeving development program.

The purpose of this program has been to provide an alternative tube repair technique to plugging.

Five (5) test sleeves were installed in the B Steam Generator at Ginna during November, 1980.

An additional sixteen (16) sleeves were installed during the Spring 1981 refueling outage.

The operating experience to date with these installations has been favorable.

These installations are described in 'reports submitted to you by our letters dated November 6,

1980 and April 23, 1981.

Our sleeving development program will be completed in the near future.

The final sleeve design and installation procedures will be slightly different than previously described.

We are now planning on implementation of this sleeving technique as a

standard steam generator tube repair procedure.

In addition, we intend to preventatively sleeve several hundred sleeves in each steam geneiator over the next several years.

This preventative sleeving program is scheduled to begin during our Spring 1982 refueling outage.

It is planned.to continue this preventative sleeving program during each steam'enerator inspection until all tubes potentially subject to degradation are completed.

At the present time, the Ginna Inservice Inspection Program limits the maximum number of sleeves which may be installed QO~

during each steam generator inspection to 25 per steam generator.

In order to implement the sleeving program outlined above, a

proposed change to the Inservice Inspection Program is enclosed.

This change deletes the 25 sleeve limitation.

No other changes are included in this revision.

The provisions regarding inspection 8201200585 820.iS" Va~aCX-OEOOO2O4 8

PDR I

January 15, 1982 Mr. Dennis M. Crutchfield and acceptable wall thickness of tubes and tube/sleeve combi-nations remain as previously approved.

To facilitate your review 'and approval of this proposed change to the Ginna Station Inservice Inspection

Program, and in accordance with requests from members of your staff, it is proposed that an independent Design Review Board be used.

The format and procedures for this board would be similar to those used for.the meeting of the San Onofre Unit 1 Steam Generator Sleeving Review'Board during October, 1980.

A report describing the final details of our sleeve design and qualification program will be submitted to you on or about February 19, 1982.

It is proposed that a Design Review Board meeting for the Ginna sleeving program be conducted on or about March 10, 1982 in Rochester.

Actual sleeve installation during the upcoming refueling outage at Ginna is not scheduled to commence until after April 20, 1982.

With your concurrence, Rochester Gas and Electric will proceed to select participants for the board and establish the meeting arrangements and procedures.

We would like to review the pro-posed participants and arrangements with you in the near future.

Very truly yours, John E. Maier

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ATTACHMENT D we

<<0 Vl eW ROCHESTER CAS AHD ELECTRIC CORPORATION

~ 89 EAST AVEHVE, ROCHESTER, H.Y. I4649

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~ ~ ~ 540 2 ~ 00 January 1'5,

.1982 Director of Nuclear Reactor Regulation Attention:

Mr. Dennis M. Crutchfield, Ch'ief Operating Reactors Branch No.

5 Division of Licensing U.S. Nuclear Regulatory Commission Washington, D.C.

20555

Subject:

Steam Generator Sleeving R.

E. Ginna Duel.ear Power Plant, Unit Docket No~I'-844'ear Mr. Crutchfield:

Since August, 1980 Rochester Gas and Electric has had a

steam generator sleeving development program.

The purpose of this program has been to provide an alternative tube repair technique to plugging.

Five (5) test sleeves were installed in the B Steam Generator at Ginna during November, 1980.

An additional sixteen (16) sleeves were installed during the Spring 1981 refueling outage.

The operating experience to date with these installations has been favorable.

These installations are described in reports submitted to you by our letters dated November 6, 1980 and April 23, 1981.

Our sleeving development program will be completed in the near future.

The final sleeve design and installation procedures will be slightly different than previously described.

We are now planning on implementation of this sleeving technique as a

standard steam generator tube repair procedure.

Zn addition, we intend to preventatively sleeve several.

hundred sleeves in each steam generator over the next several years.

This preventative sleeving program is scheduled to begin during our Spring 1982 refueling outage.

Zt is planned.to continue this preventative sleeving program during each steam generator. inspection until all tubes potentially subject to,degradation are completed.'t the present time, the Ginna Znservice Inspection Program limits the maximum number of sleeves which may be installed 0

during each steam generator inspection to 25 per steam generator.

s In order to implement the sleeving program outlined above, a

proposed change to the Znservice Inspection Program is enclosed.

This change deletes the 25 sleeve limitation.

No other. changes are included in this revision.

The. provisions regarding inspection

January, 15, 1982 Mr. Dennis M. Crutchfield and acceptable wall thickness of tubes and,tube/sleeve combi-nations remain as previously approved.

To facilitate your review 'and approval of this proposed change to the Ginna Station Inservice Inspection

Program, and in accordance with requests from members of your staff, it is

~ proposed that an independent Design Review Board be used.

The

~ format and procedures for this board would be similar to those used for the meeting of the San Onofre Unit 1 Steam Generator Sleeving Review'Board during October, 1980.

A report describing the final details of our sleeve design and qualification program will be submitted to you on or about February 19, 1982. It is proposed that a Design Review Board meeting for the Ginna sleeving program be conducted on or about March 10, 1982 in Rochester..

Actual sleeve installation during the upcoming refueling outage at Ginna is not scheduled to commence until after April 20, 1982.

With your concurrence, Rochester Gas and Electric will proceed to select participants for the board and establish the meeting arrangements and procedures.

Ne would like to review the pro-posed participants and arrangements with you in the near.future.

Very truly yours, l]

John E. Maier

REGULlAT I VFORhlATION DiISTRIBUTION~(STEÃ (RIDS)

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insp orogra'm orovi ding al ternati ve repaii r for tube plugging techn'jque'.Sleevjng program scheduled fo.r imolementation durin'g Sar.jng 19S2 refueling outage.

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ROCHESTER GAS AND ELECTRIC CORPORATION o

89 EAST AVENUE, ROCHESTER, N.Y. 14649 JOHN E.

MAIER VICE PRESIDENT TCLCPHOMC ARCA CODC 7ld 546-2700 January 15, 1982 Director of Nuclear Reactor Regulation Attention:

Mr. Dennis M. Crutchfield, Chief Operating Reactors Branch No.

5 Division of Licensing U.S. Nuclear Regulatory Commission Washington, D.C.

20555

Subject:

Steam Generator Sleeving R.

E. Ginna Nuclear Power Plant, Unit Docket, No. 50-244