The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking qualified sources for the repair and modification of a critical aircraft component, identified by NSN 7R-1680-016716624-YR, with a quantity of 13 units required. This procurement necessitates engineering source approval due to the flight-critical nature of the item, and only sources previously approved by the Government will be considered for award, as the technical data available does not support full and open competition. Interested parties must submit the required documentation for source approval along with their proposals, and any offers lacking the necessary data will not be considered. For further inquiries, potential bidders can contact Marisa L. Tetkowski at (215) 697-2644 or via email at MARISA.TETKOWSKI@NAVY.MIL.