ML20134D029

Informs That Staff Finds Results of Insp & Evaluation Acceptable & Concludes That Commitments Fulfilled,Per GL 94-03

ML20134D029
Person / Time
Site:	Limerick
Issue date:	10/02/1996
From:	Rinaldi F NRC (Affiliation Not Assigned)
To:	Hunger G PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
References
GL-94-03, GL-94-3, TAC-M96071, NUDOCS 9610110329
Download: ML20134D029 (3)

Text

. - _ . - _ _ . __ - .-. .

, October 2, 1996 Mr. George A. Hunger, Jr.

Director-Licensing, MC 62A-1 PECO Energy Company Nuclear Group Headquarters  ;

Correspondence Control Desk P.O. Box No. 195 l Wayne, PA 19087-0195

SUBJECT:

REPORTING REQUIREMENTS OF GENERIC LETTER (GL) 94-03, "INTERGRANULAR STRESS CORROSION CRACKING OF CORE SHROUDS IN BOILING WATER REACTORS," LIMERICK GENERATING STATION, UNIT 1 (TAC NO. M96071)

Dear Mr. Hunger:

4 In your letter dated March 18, 1996, you provided the inspection results for ,

the core shroud of the Limerick Generating Station (LGS), Unit 1. These l results were submitted according to the reporting requirements of Generic Letter (GL) 94-03, "Intergranular Stress Corrosion Cracking of Core Shrouds in

Boiling Water Reactors (BWR)."

We understand that the inspections _were conducted according to the guidance provided by the BWR Vessel and Internal Projects in the document, "BWR Core Shroud Inspection and Flaw Evaluation Guidelines," dated March 1995, and that LGS, Unit 1 is a Category B plant. This category has a lower potential for i shroud cracking and requires a lower number of weld inspections. The submittal reports inspections and flaw evaluations performed during the last LGS, Unit I refueling outage on welds H3, H4, H5, and H7, as recommended by

! the guidance document. Also, you found minor cracking in the H3 weld and i reported the total combined length of indications as 14.4 inches. This

represents 4% of the examined length, which was 55% of the total weld length.

The staff finds the results of the inspection and evaluation acceptable, and concludes that they fulfill your commitments to GL 94-03.

4 Sincerely,

/S/

' Frank Rinaldi, Project Manager Project Directorate I-2 1

Division of Reactor Projects - I/II Docket No. 50-352 cc: See next page 4

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October 2, 1996 Mr. George A. Hunger, Jr.

Director-Licensing, MC 62A-1 PECO Energy Company i

Nuclear Group Headquarters Correspondence Control Desk P.O. Box No. 195 Wayne, PA 19087-0195 i

i

SUBJECT:

REPORTING REQUIREMENTS OF GENERIC LETTER (GL) 94-03, "INTERGRANULAR  !

STRESS CORR 0SION CRACKING 0F CORE SHROUDS IN BOILING WATER REACTORS," LIMERICK GENEPATING STATION, UNIT 1 (TAC NO. M96071)

Dear Mr. Hunger:

In your letter dated March 18, 1996, you provided the inspection results for the core shroud of the Limerick Generating Station (LGS), Unit 1. These results were submitted according to the reporting requirements of Generic Letter (GL) 94-03, "Intergranular Stress Corrosion Cracking of Core Shrouds in l Boiling Water Reactors (BWR)."

Weunderstandthattheinspectionswereconductedaccordingtotheguidance provided by the BWR Vessel and Internal Projects in the document, "BWR Core Shroud Inspection and Flaw Evaluation Guidelines," dated March 1995, and that LGS, Unit 1 is a Category B plant. This category has a lower potential for l shroud cracking and requires a lower number of weld inspections. The (

submittal reports inspections and flaw evaluations performed during the last i LGS, Unit I refueling outage on welds H3, H4, H5, and H7, as recommended by l the guidance document. Also, you found minor cracking in the H3 deld and reported the total combined length of indications as 14.4 inches. This i

represents 4% of the examined length, which was 55% of the total weld length. i The staff finds the results of the inspection and evaluation acceptable, and concludes that they fulfill your commitments to GL 94-03.

Sincerely,

). % A-- I k Frank Rinaldi, Project Manager Project Directorate I-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Docket No. 50-352 l

l cc: See next page l

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~

Mr. G u rge A. Hung:r, Jr. Limerick Generating Station, '

PECO Energy Company Units 1 & 2

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cc:

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Gw J. W. Durham;'.Sr., Esquire Mr. Rich R. Janati, Chief '

Sr. V.P. & General Counsel Division of Nuclear Safety i PECO Energy Company PA Dept. of Environmental Resources f 2301 Market Street P. O. Box 8469 '

Philadelphia, Pennsylvania 19101 Harrisburg, Pennsylvania 17105-8469 Mr. David P. Helker, MC 62A-1 Mr. Michael P. Gallagher Manager-Limerick Licensing Director - Site Engineering PECO Energy Company Limerick Generating Station 965 Chesterbrook Boulevard P. O. Box A Wayne, Pennsylvania 19087-5691 Sanatoga, Pennsylvania 19464 Mr. Walter G. MacFarland, Vice President Limerick Generating Station Mr. James LJ Kantner Post Office Box A Manager-Experience Assessment Sanatoga, Pennsylvania 19464 Limerick Generating Station P. O. Box A l N. Robert Boyce Sanatoga, Pennsylvania 19464 '!

Plant Manager  ?

Limerick Generating Station Library P.O. Box A US Nuclear Regulatory Commission  !!

Sanatoga, Pennsylvania 19464 Region I ~

475 Allendale Road Regional Administrator King of Prussia, PA 19406 U.S. Nuclear Regulatory Commission .

Region I Mr. Ludwig E. Thibault i 475 Allendale Road Senior Manager - Operations  !!

King of Prussia, PA 19M, Limerick Generating Station ii P. O. Box A '

Mr. Neil S. Perry Sanatoga, Pennsylvania 19464 Senior Resident Inspector US Nuclear Regulatory Commission Dr. Judith Johnsrud P. O. Box 596 National Energy Committee attstown, Pennsylvania 19464 Sierra Club 433 Orlando Avenue Mr. Darryl P. Lequia State College, PA 16803 Director - Site Support Services Limerick Generating Station P.O. Box A ..

Sanatoga, Pennsylvania 19464 Chairman Board of Supervisors of Limerick Township 646 West Ridge Pike Linfield, PA 19468 e