This opportunity requires the overhaul of Mechanical Transmissions for aviation, which are Critical Safety Items, with an estimated quantity range of 25 to 150 units. Performance can only be conducted by a source approved by the Systems Readiness Directorate, and the only currently known approved source is Sikorsky Aircraft Corporation. Prospective contractors must possess a current CMMC Level 2 assessment and submit a Source Approval Request to qualify. The requirement is currently unfunded, meaning award will be withheld until sufficient funds are received. No specific budget amount, performance location, or non-bid timelines are mentioned in the description.