The Department of Defense, through the Department of the Navy's NAVSUP Weapon Systems Support, is seeking proposals for the repair and modification of a flight-critical item identified by NSN 7R-1680-016426218-RQ. This procurement requires government source approval prior to contract award, as the technical data available does not support full and open competition, and only previously approved sources will be solicited. The item is essential for maintaining the quality and reliability of aircraft operations, necessitating strict adherence to engineering source approval processes. Interested vendors must submit their proposals along with the required source approval documentation to Nadia Govorushko at NADIA.GOVORUSHKO@NAVY.MIL by the specified deadline to be considered for this opportunity.