- MARK 16:15 Now, as a Pratt & Whitney Canada Distributor and Designated Overhaul Facility (DDOF) for PT6A engines, we’re able to further enhance our ability to serve the needs of Mission Aviation by providing warranty support, Customer Support Programs (CSP), rental engines, AOG support and many other services. We’re continually looking for new partnerships with missions organizations, contact us to learn more about our abilities to serve you in your commitment to spreading the gospel.