U.S. Nuclear Regulatory Commission

As indicated in the enclosed materials, this submittal contains information that MHI considers proprietary, and therefore should be withheld from public disclosure pursuant to 10 C.F.R. § 2.390 (a)(4) as trade secrets and commercial or financial information which is privileged or confidential. The Response to Request for Additional Information No. 71-986, Revision 0, Questions 10-15, is being submitted as a non-proprietary document. Attachments 1 and 2 in Enclosures 3 and 5, respectively, are designated as "Proprietary " to be withheld from public disclosure pursuant to 10 C.F.R. § 2.390 (a)(4). This letter includes the responses to RAI 71-986, Questions 10-15 (Enclosure 2), a copy o