ML090540061

Submittal of Fourth Ten-Year Interval Inservice Inspection Program Plan and Request for Approval of Alternatives (Relief Requests) to American Society of Mechanical Engineers Code,Section XI

ML090540061
Person / Time
Site:	Calvert Cliffs
Issue date:	02/18/2009
From:	Flaherty M Constellation Energy Group, Nuclear Generation Group
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML090540061 (4)

Text

-1 Calvert Cliffs Nuclear Power Plant 1650 Calvert Cliffs Parkway Lusby, Maryland 20657 Constellation Energy-Nuclear Generation Group February 18, 2009 U. S. Nuclear Regulatory Commission Washington, DC 20555 ATTENTION: Document Control Desk

SUBJECT:

Calvert Cliffs Nuclear Power Plant Unit Nos. 1 & 2; Docket Nos. 50-317 & 50-318 Update: Submittal of Fourth Ten-Year Interval Inservice Inspection Program Plan and Request for Approval of Alternatives (Relief Requests) to American Society of Mechanical Engineers Code,Section XI

REFERENCES:

(a) Letter from Mr. M. D. Flaherty (CCNPP) to Document Control Desk (NRC), dated December 29, 2008, Submittal of Fourth Ten-Year Interval Inservice Inspection Program Plan and Request for Approval of Alternatives (Relief Requests) to American Society of Mechanical Engineers Code,Section XI (b) Letter from Mr. D. V. Pickett (NRC) to Mr. J. A. Spina (CCNPP), dated February 12, 2009, Acceptance Review of Relief Request ISI-04 Calvert Cliffs Nuclear Power Plant (CCNPP), Unit Nos. 1 and 2 In Reference (a), Calvert Cliffs Nuclear Power Plant, Inc. (Calvert Cliffs) requested approval for relief requests from the requirements of American Society of Mechanical Engineers Code,Section XI in conjunction with the submittal of Calvert Cliffs Fourth Ten-Year Interval Inservice Inspection Program Plan.

During the acceptance review of this relief request, the NRC staff determined that the initial submittal required modification to allow continued NRC staff review (Reference b). Attachment (1) provides the modification to our initial submittal.

Should you have questions regarding this matter, please contact Mr. Jay S. Gaines at (410) 495-5219.

Very truly yours, Mark D. Flaherty Manager - Engineering Services MDF/KLG/bjd

Attachment:

(1) Response to NRC Acceptance Review Concern

/A9Y

Document Control Desk February 18, 2009 Page 2 cc: D. V. Pickett, NRC Resident Inspector, NRC S. J. Collins, NRC S. Gray, DNR

ATTACHMENT (1)

RESPONSE TO NRC ACCEPTANCE REVIEW CONCERN Calvert Cliffs Nuclear Power Plant, Inc.

February 18, 2009

ATTACHMENT (1)

RESPONSE TO NRC ACCEPTANCE REVIEW CONCERN NRC Concern

1. The first sentence of the last paragraph on page 7 of Enclosure I to Attachment 5 of Reference I reads as follows:

"A gap analysis for the CCNPP PRA internal events model is currently being performed by a group of vendors."

The NRC staff requests that the licensee clarify that the above analysis has been performed and that the information contained in the application is complete and reflective of this analysis.

CCNPP Response The first sentence of the last paragraph on page 7 of Enclosure 1 to Attachment 5 of Reference I is changed to read:

"A gap analysis for the CCNPP PRA internal events model was performed by a group of vendors in December of 2008. The significant gaps related to the model used in this analysis are listed in the attachment at the end of this enclosure."

With this change, the information contained in Reference I (as supplemented here) is complete and reflective of this analysis.

Reference

1. Letter from Mr. M. D. Flaherty (CCNPP) to Document Control Desk (NRC), dated December 29, 2008, Submittal of Fourth Ten-Year Interval Inservice Inspection Program Plan and Request for Approval of Alternatives (Relief Requests) to American Society of Mechanical Engineers Code,Section XI II