Gulfstream V Nadir Viewport Installation

NASA Armstrong Flight Research Center is soliciting proposals for the structural modification of a Gulfstream V aircraft (S/N 570) to install two nadir (downward-looking) optical viewports and relocate necessary aircraft systems including oxygen lines, hydraulic lines, environmental control systems, wire harnesses, and temperature probes. The baseline modification work will leverage existing technical data from a previously completed similar installation on Gulfstream V aircraft S/N 672 to minimize design deviations. Proposals will be evaluated using a competitive price-performance trade-off methodology with non-price factors significantly outweighing price, and evaluation will consider technical acceptability, past performance, and pricing. Offerors must submit questions by 5:00 PM Pacific Standard Time on March 3, 2026, and complete proposals are due by 5:00 PM Pacific Daylight Time on March 20, 2026, with an anticipated award date on or before May 1, 2026. The contract structure includes three contract line items: CLIN 0001 for baseline nadir viewport installation (firm-fixed-price), CLIN 0002 for over-and-above materials and costs (time and materials, not to exceed $850,000), and CLIN 0003 for optional scheduled maintenance inspections (firm-fixed-price).

This acquisition is designated as a total small business set-aside under NAICS Code 336411 (Aircraft Manufacturing) with a size standard of 1,500 employees, and no incumbent contractor is identified in the solicitation materials. The contract baseline schedule runs from award on May 1, 2026 through aircraft acceptance by NASA on February 2, 2027, with major milestones including System Requirements Review/Preliminary Design Review on June 1, 2026, Critical Design Review on July 1, 2026, aircraft delivery to contractor on August 4, 2026, and flight testing completion by January 19, 2027. The contractor must provide all labor, tooling, materials, and a suitable hangar facility capable of fully enclosing the aircraft, while NASA will furnish the aircraft, reference documentation, pilots, and fuel for testing. All work must be performed at the contractor's facility and meet Federal Aviation Administration Code of Federal Regulations Part 14 certification requirements and SAE AS9100 quality management system standards. Delivery must be completed within nine months after receipt of order on an FOB origin basis to NASA Armstrong Flight Research Center in Edwards, California.