Specification Change Request TSCR-042- Extended Power Uprate

On July 9, 2001, a conference call was held with the NRC Staff regarding the referenced amendment request to increase the authorized license power level of the Duane Arnold Energy Center (DAEC). In order to complete their review, the Staff requested additional information to that previously provided. This Request for Additional Information (RAI) had been previously transmitted to us electronically to facilitate the call. Attachment 1 to this letter contains the requested additional information, as modified in the conference call. Please note that the response in Attachment 1 contains information that the General Electric Company (GE) considers to be proprietary in nature and subsequently, pursuant to 10 CFR 9.17(a)(4), 2.790(a)(4) and 2.790(d)(1), requests that such information be withheld from public disclosure. The portion of the text containing the proprietary information is identified with vertical sidebars in the right margin. An affidavit supporting this request is provided as Attachment 2 to this letter. Attachment 3 is the redacted version of Attachment 1, with the GE proprietary material removed, suitable for public disclosure. No new commitments are being made in this letter. Please contact this office should you require additional information regarding this matter