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

A -- RESEARCH IN AIRCRAFT ACOUSTICS AND NOISE CONTROL SOL 1-109-DF.1336 DUE 092399 POC Betty Mayhew, Contract Specialist, Phone (757)-864-2530, Fax (757) 864-7709, Email B.B.MAYHEW@larc.nasa.gov WEB: Click here for the latest information about this notice, http://nais.nasa.gov/EPS/LaRC/date.html#1-109-DF.1336. E-MAIL: Betty Mayhew, B.B.MAYHEW@larc.nasa.gov. This is a modification to the synopsis entitled Research in Aircraft Acoustics and Noise Control/Solicitation No. 1-109-DF.1336 which was posted on 04/07/99. You are notified that the following change is made: The final RFP is planned for release on or about 08/09/99, with an anticipated proposal due date on or about 09/23/99. 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 of the solicitation and amendments (if any). Posted 07/23/99 (D-SN358162). (0204)

Loren Data Corp. http://www.ld.com (SYN# 0002 19990727\A-0002.SOL)