NASA/Langley Research Center, Mail Stop 144, Industry Assistance Office, Hampton, VA 23681-0001

A -- PRELIMINARY DESIGN STUDY OF ACTIVELY-COOLED ENGINE COWL LEADING EDGES FOR HYPERSONIC FLIGHT VEHICLES SOL 1-168-LA.1173 DUE 042299 POC Kimberly D. Duncan, Contracting Officer, Phone (757) 864-3566, Fax (757) 864-8863, Email k.d.duncan@larc.nasa.gov -- Sandra M. Glenn, Contracting Officer, Phone (757)-864-2413, Fax (757) 864-8863, Email S.M.GLENN@larc.nasa.gov WEB: Click here for the latest information about this notice, http://nais.nasa.gov/EPS/LaRC/date.html#1-168-LA.1173. E-MAIL: Kimberly D. Duncan, k.d.duncan@larc.nasa.gov. This is a modification to the synopsis entitled Preliminary Design Study of Actively-Cooled Engine Cowl Leading Edges for Hypersonic Flight Vehicles 1-168-LA.1173 which was posted on April 7,1999. You are notified that the following changes are made: This synopsis is hereby canceled in its entirety. It has been determined that the existing method of cooling the leading edges is acceptable. No additional leading edge cooling work is required for the Hyper-X. Documents related to this procurement are available over the Internet and are in Microsoft Office Suite (Word 6.0, Excel 5.0, or PowerPoint 4.0) format and will reside on a World Wide Web (WWW) server, which may be accessed using a WWW browser application. The WWW address or URL of the NASA/LaRC Business Opportunities home page is http://procurement.nasa.gov/EPS/LaRC/class.html Offerors are responsible for monitoring this site for the release of the solicitation and any amendments. Potential offerors are responsible for downloading their own copy ofthe solicitation and amendments (if any). Posted 04/19/99 (D-SN321890). (0109)

Loren Data Corp. http://www.ld.com (SYN# 0011 19990421\A-0011.SOL)