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

A -- DEVELOP SPACE QUALIFIED, DIRECT CURRENT TO DIRECT CURRENT POWER CONVERTER UNITS (DDCUS) FOR INTERNATIONAL SPACE STATION. SOL 3-148539 DUE 052300 POC Michael J. Kinkelaar, Contract Specialist, Phone (216) 433-2736, Fax (216) 433-2480, Email Michael.J.Kinkelaar@grc.nasa.gov WEB: Click here for the latest information about this notice, http://nais.msfc.nasa.gov/cgi-bin/EPS/bizops.cgi?gr=D&pin=22#3-1485398539. E-MAIL: Michael J. Kinkelaar, Michael.J.Kinkelaar@grc.nasa.gov. NASA/GRC plans to issue a Request for Proposal (RFP) for Design, Development and test of One (1) Alternate DC to DC Converter Qualification Unit and Delivery of up to Thirty Five(35) Alternate DC to DC Converter Flight Units (DDCU'S). NASA/GRC intends to purchase the items from either TRW or Hamilton Sundstrand under limited competition. Justification for limited competition with TRW and Hamilton Sundstrand has been prepared using 10 U.S.C. 2304(c)(1), Federal Acquisition Regulation, (FAR), 6.302-1. "Only one responsible source and no other supplies or services will satisfy agency requirements" and 10 U.S.C 2304(c)(2) "Unusual and compelling urgency". The Government has invested approximately two million dollars in prior development efforts with TRW and Hamilton Sundstrand which resulted in working breadboard DDCU'S. Units to consist of one common electrical design, but three different mechanical configurations. Input voltage to be 115 to 173 Volts direct current with 123 to 126 Volts direct current out at 52 Amperes. Units to operate in low earth orbit space environment and within pressurized volumes. To be qualified to propose for award, supplier must deliver a working brassboard for test by the government, by August 2000, which meets all electrical performance requirements. Pre-qualification was determined by work done on previous government contracts, to the same general electrical performance specifications as the flight units, which resulted in working breadboards. If these units are determined to be necessary by the International Space Station Program Office, then time will be of the essence in the delivery of the units, and there will be insufficient time for suppliers, who do not have the benefit of a working brassboard at the time of award, to meet the required schedule. The possibility exists that this procurement will never be awarded if the International Space Station Program Office determines that the baselined DDCUs will meet their needs. The final scope of the contract resulting from this procurement is expected to result in as many as 35, or so, units, and may include maintenance and logistics support, and sustaining engineering up to as much as fifteen years. Procurement activity is being initiated now to permit award to take place, in October 2000, soon after the testing and a Preliminary Design Review of the suppliers proposed designs. The Government does not intend to acquire a commercial item using FAR Part 12. See Note 26. See Note 22. All responsible sources may submit a proposal which shall be considered by the agency.However, an interested company must deliver and demonstrate a working brassboard DDCU to NASA Glenn Research Center on or before August 1, 2000. The Government contemplates a Cost Plus Incentive Contract for the delivery of the DC to DC converters. An Ombudsman has been appointed, See Internet Note "B". Any referenced notes can be viewed at the following URL: http://genesis.gsfc.nasa.gov/nasanote.html Posted 05/03/00 (D-SN451008). (0124)

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