- (a) The applicant must design each part, article, and assembly for the expected operating conditions of the airplane.
- (b) Design data must adequately define the part, article, or assembly configuration, its design features, and any materials and processes used.
- (c) The applicant must determine the suitability of each design detail and part having an important bearing on safety in operations.
- (d) The control system must be free from jamming, excessive friction, and excessive deflection when the airplane is subjected to expected limit airloads.
- (e) Doors, canopies, and exits must be protected against inadvertent opening in flight, unless shown to create no hazard when opened in flight.