Blackhawk Modifications is in the final stages of STC flight testing for a Cessna 208 Caravan XP42A upgrade package. It includes a factory-new Pratt & Whitney Canada PT6A-42A rated at 850 shp continuous, a wide-chord, 100-inch Hartzell four-blade propeller, composite cowling and high-efficiency inlet duct, 40-percent-larger oil cooler, engine hose kit, Blackhawk Hawkeye DigiLog engine gauges and Frakes exhaust stacks. A spokesperson for the company told AIN it provides full engineering and technical support for issues that arise on the modification itself for the life of the aircraft.