Transport Canada CF-2023-48

Requires changes to the airplane flight manual emergency and non-normal procedures to ensure the horizontal stabilizer is correctly configured before takeoff. Prompted by a Bombardier design review of the avionics architecture of the pitch trim indication and alerting system that revealed software errors in the input/output concentrator, data concentrator unit, and/or adaptive flight display could generate misleading pitch trim indication to the crew, leading to incorrect horizontal stabilizer positioning at takeoff.