The Department of Defense, specifically the Air Force Life Cycle Management Center (AFLCMC), is seeking qualified contractors to provide maintenance services for three Pratt & Whitney Canada (P&WC) PT6C-67C turboshaft engines. The primary objective is to inspect, overhaul, repair, and upgrade these engines to the PT6C-67C1 configuration, ensuring they are returned to airworthy status for use as spares in the MH-139A fleet, which supports critical military operations. These engines, currently shelved and non-operational, require comprehensive maintenance and FAA certification to meet military standards. Interested parties must submit their responses by 3:00 PM Eastern time on October 20, 2025, to the designated contacts, Leighton Smith and Jeremy D. Perry, via email, and should include detailed technical capabilities and compliance information as part of their submission.