Indefinite Delivery Contract 140D0426D0021

This Indefinite Delivery Contract awards $18.6 million to Mcmahan Guide and Flying Service, a Total Small Business set-aside multiple-award contract, for fixed-wing on-call flight services supporting federal operations in Alaska. The prime contractor, a sole proprietorship operated by Harley B. Mcmahan and based in Gakona, Alaska, provides specialized aerial transportation and pilot services primarily to the National Park Service Alaska Region through March 31, 2031. The contract procures on-demand fixed-wing aircraft capabilities for remote area access, personnel and equipment transport, and aerial support missions across Alaska's national parks and preserves, including Wrangell-St. Elias, Katmai, and Kenai Fjords.

The funded agency is the Department of the Interior's Interior Business Center, which administers this vehicle to support mission-critical activities such as wildlife surveys, species monitoring, caribou herd census work, bald eagle nest productivity surveys, and logistical support for National Park Service operations. Delivery orders under the contract have historically funded flight missions in locations including Glennallen, Eagle, Fairbanks, and Copper Center, with individual task orders ranging from $1,000 to $42,000. The contractor's established operational history with the National Park Service Alaska Region, combined with expertise in navigating Alaska's challenging geographic terrain and remote area logistics, positions the firm to deliver critical aviation support infrastructure for federal land and resource management throughout the Alaska region.