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Requests approval for application of leak-before-break technology on pressurizer surge line.Encl proprietary WCAP-12773 & nonproprietary WCAP-12774 reflect analysis performed by Westinghouse.Proprietary WCAP-12773 withheld.

Accession Number: ML073550442

Date Released: Sunday, June 1, 2008

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• ML073550441 - Requests approval for application of leak-before-break technology on pressurizer surge line.Encl proprietary WCAP-12773 & nonproprietary WCAP-12774 reflect analysis performed by Westinghouse.Proprietary WCAP-12773 withheld. (4 page(s), 6/22/1992)
• ML073550443 - Requests that proprietary WCAP-12773, "Technical Justification for Eliminating Pressurizer Surge Line Rupture as Structural Design Basis for Watts Bar Units 1 & 2" be withheld (ref 10CFR2.790(b)(4)). (10 page(s), 5/20/1992)
• ML080500665 - Nonproprietary "Technical Justification for Eliminating Pressurizer Surge Line Rupture as Structural Design Basis for Watts Bar Units 1 & 2." (72 page(s), 12/31/1990)