The STC (SA10824SC) replaces the original Pratt & Whitney PT6A-41 or -42 engines with the newly developed PT6A-52 engine now being installed on the Hawker Beechcraft B200GT production line. Blackhawk is the first company to win FAA approval and make the -52 engines available for retrofit on in-service King Airs.
Blackhawk completed all the FAA requirements and obtained the STC in less than 5 months. Assistance from Pratt & Whitney and one of Blackhawk’s leading distributors, Hawker Beechcraft sped the certification process along. The -52 engine upgrade will be an additional re-engining solution joining Blackhawk’s recently certified PT6A-61 XPR for the King Air 200 series. Blackhawk believes that due to the factory using the -52 engine on the new King Air B200GT, it was strategically sensible to offer the same engine in the aftermarket.