Douglas Sheridan is a principal engineer in system safety at Textron Aviation. Doug has more than 25 years of experience supporting new and amended type certifications of small and large Beechcraft and Cessna piston, turboprop, and jet airplanes. Doug is an Organization Designation Authority (ODA) Unit Member with authority for Part 23 and 25 Safety Analysis in Mechanical and Electrical Systems, and Powerplant Installations.

Doug has been an active participant on the SAE International S-18 Aircraft and System Development and Safety Assessment Committee since 1999. He currently serves as secretary for the committee. Doug was formerly the chair of an S-18 sub-committee to revise ARP5151, Safety Assessment of General Aviation Airplanes and Rotorcraft in Commercial Service.

Doug holds a private pilot license and is a member of the Textron Aviation Flying Club. Doug earned a Bachelor of Science degree in Aeronautical/ Astronautical Engineering from The Ohio State University.