NRC-94-4158, Discusses AP600 Design Certification Review Schedule

Discusses AP600 Design Certification Review Schedule

ML20069G325
Person / Time
Site:	05200003
Issue date:	06/03/1994
From:	Liparulo N WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NTD-NRC-94-4158, NUDOCS 9406090295
Download: ML20069G325 (11)

Text

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Westinghouse Energy Systems Box 355 Pinsburgh Pennsylvania 15230-0355 Electric Corporatiori l

NTD-NRC.94-4158 DCP/NRC0099 Docket No.: STN 52-003 June 3,1994 ,

Document Control Desk .

U. S. Nuclear Regulatory Commission Washington DC 20555 ATTENTION: Dennis Crutchfield  ;

SUBJECT:

AP600 DESIGN CERTIFICATION REVIEW SCHEDULE f

Dear Mr. Crutchfield:

i Since the beginning of the year, Westinghouse has made substantial progress in the AP600 design certification program in the areas of testing, RAI responses, analysis activities, RTNSS review and technical issue resolution that affect the AP600 design certification schedule assumptions made in SECY-94-117. In addition, Westinghouse has reviewed the process presented by the staff in SECY- i 94-117 and has further optimized the Westinghouse activities the staff considers to be on the critical path for their review.

On May 25,1994, a meeting was held between the Nuclear Regulatory Commission and Westinghouse to discuss the review schedule for the AP600 design certification application. At that meeting a detailed discussion of the review process for the AP600 design certification application was held. The -

discussion included a review of the activities necessary to issue the FDA and the assumptions each L party had made in developing their own whedules. As a result of the meeting, Westinghouse believes -

• that an improvement of seven to eight months is possible over the AP600 design certification review schedule presented in SECY-94-117. This improvement is comprised of: I

a. One month from improvements in the FSER review process The improvements in the FSER review process were accomplished by placing tasks in parallel.

b. Five to six months from accelerating the SSAR analysis effort To facilitate an earlier NRC start on the FSER preparation, Westinghouse will initiate certain analyses of design basis accidents for inclusion in the final SSAR update prior to issuing the final code validation and verification (V&V) reports. The results of the' analyses will be provided to the staff on an as-completed basis rather than waiting for the entire SSAR section to be completed. Westinghouse recognizes this approach may

' require reanalysis if changes are required to the computer codes as a result of completing the V&V activities.

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4 NTD-NRC-94-4158 DCP/NRC0099 June 3,1994

c. One month from providing the OSU final test report earlier This will allow the staff to start their preparation of the DSER supplement earlier.

The material distributed at the meeting is attached to this letter with e.cpanded explanations of how the SSAR analysis results will be provided to the NRC for their review.

Westinghouse recognizes this schedule has no contingencies for unexpected test results or design changes.

As a result of our meeting, the staff agreed that improvement in the AP600 design certification schedule was possible and that they would review this material to determine what improvement is feasible. The results of the staff review will be documented in a letter to the Commission.

Please contact Briae A. McIntyre (412) 374-4334 if you have any questions concerning this subject.

N //

Nicholas J. Liparulo Nucicar Safety Regulatory and Licensing Activities

/nja Attachment cc: S. M. Franks - DOE R. P. Mcdonald - ARC W. H. Layman - EPRI 1501A

~

DISCUSSION POINTS ON DETAILED SCHEDULES OVERAIL Quick look data report submittals identified for each test Final chapter 6 & 15 reanalysis and submittal 1195 Intermediate analysis packages SBLOCA (NOTRUMP) 7S5 LBLOCA (WCOBRAfrRAC) 6S5 NONLOCA & SGTR (LOFTRAN) 695 Containment (WGOTHIC) 7S5 OSU final test report 4SS One month earlier than schedule basis for SECY-94-117 NOTRUMP Validation against CMT, ADS, SPFe,-2 and OSU tests Final V&V report 9B5 Preliminary validation packages provided to staff in advance of final V&V report CMT 1094

- ADS 395 SPES-2 5S5

• OSU 8S5

• SSAR analysis package to staff 7S5 I

• Includes blind test predictions 1801A

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Validation against ADS, SPES-2 and OSU tests Final V&V report 995 Prelirninary validation packages provided to staff in advance of final V&V report ADS 695

- SPES-2 795 OSU 6S5 i OSU LTC 8S5 SSAR analysis package to staff 6S5 LOFTRAN

- Validation against CMT and SPES-2 tests Final V&V report 495 Prelirninary validation packages provided to staff in advance of final V&V report CMT 1194 SPES-2 3N5

• SSAR analysis package to staff SS5

• Includes blind test predictions WGOTHIC j PCCS analysis information DSER supporting information to staff 6S4

- Validation against LST tests Final V&V report 495

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f Preliminary validation packages provided to staff in advance of final V&V report Phonomological reports 4S4, 6S4, 7/94, 8S4, 10S4,12S4 LST 10S4 LST - Lumper Parameter 11S4 SSAR analysis package to staff 7S5

• Includes blind test predictions PROCESS Three months identified as being possible Commission review in parallel with ACRS letter DCD prepared and issued at same time FSER published Staff drafts and issues FR notice in parallel with FSER Staff issues proposed rule in parallel with FSER One month should be achievable i

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