Special Conditions: Bombardier Aerospace Inc. Model BD-700-2A12 and BD-700-2A13 Airplanes; Automatic Speed Protection for Design Dive Speed

These special conditions are issued for the Bombardier Aerospace Inc. (Bombardier) Model BD-700-2A12 and BD-700-2A13 airplanes. These airplanes will have a novel or unusual feature when compared to the state of technology envisioned in the airworthiness standards for transport-category airplanes. This design feature is associated with a reduced margin between design cruising speed, VC/MC, and design diving speed, VD/ MD, based on the incorporation of a high-speed-protection system that limits nose-down pilot authority at speeds above VD/MD. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for these design features. These special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards.