NASA/Glenn Research Center, 21000 Brookpark Road, Cleveland, OH 44135

58 -- COMPACT EXCIMER LASER SOL SOL.3-128197 DUE 071699 POC Wayne R. Girard, Contract Specialist, Phone (216) 433-2799, Fax (216) 433-5489, Email Wayne.R.Girard@grc.nasa.gov WEB: Click here for the latest information about this notice, http://nais.nasa.gov/EPS/GRC/date.html#SOL.3-128197. E-MAIL: Wayne R. Girard, Wayne.R.Girard@grc.nasa.gov. This is a modification to the synopsis entitled COMPACT EXCIMER LASER, SOLICITATION 3-128197 which was posted on June 28, 1999. You are notified that the following information is provided: The original solicitation did not mention the repetition rate of the laser. The requirement is for a repetition rate of 300Hz, and also a minimum of 200 million pulses per mirror set lifetime (mirror lifetime defined as the point in time when the laser pulse energy drops off to less than 50% of the specified nominal energy output.) The due date for receipt of offers is not extended . 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 Internet site, or URL, for the NASA/GRC Business Opportunities home page is http://procurement.nasa.gov/EPS/GRC/class.html [REPLACE "GRC" IN BOTH PLACES WITH THE GRC'S ABBREVIATION] 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). [INSERT ANY APPLICABLE NOTES] Posted 07/02/99 (D-SN349828). (0183)

Loren Data Corp. http://www.ld.com (SYN# 0236 19990707\58-0004.SOL)