Which of the following is a common error during the FTI engine failure procedures?

The choice regarding premature configuration, specifically lowering takeoff flaps too early during the engine failure procedures, is recognized as a common error because it can negatively impact the aircraft's performance and handling characteristics during a critical phase of a potential emergency. When flaps are deployed prematurely, the aircraft may not have sufficient energy to stay on the correct glide path, leading to an increased risk of stalling or not achieving the best glide configuration.

This choice highlights the importance of timing in the execution of procedures after an engine failure. Proper management of the aircraft’s configuration during these procedures is essential to maintain control and ensure a successful landing. Premature flap deployment could lead to a mismanagement of the available lift and drag, further complicating an already challenging situation.

To avoid this error, pilots are trained to be vigilant about their configurations and to make adjustments only when conditions are favorable and the aircraft is properly positioned. Understanding the energy state of the aircraft and maintaining optimal performance through the execution of emergency protocols is critical, making the timing of configuration changes a key aspect of safe flying practice.