What key characteristic defines a stabilized approach at 1000 feet AFE?

A key characteristic that defines a stabilized approach at 1000 feet AFE (Above Field Elevation) is that the aircraft must be fully configured for landing. This means that the landing gear is down, flaps are set to the landing position, and the aircraft is appropriately trimmed. A fully configured aircraft ensures that the crew has established the optimal airspeed, descent rate, and alignment with the runway during the final stages of approach, which significantly enhances safety and predictability during landing.

Achieving this configuration by 1000 feet AFE is crucial for managing the approach and ensuring that the aircraft is in a position to land safely. It allows the flight crew to have confidence in the aircraft's performance capabilities at this point in the approach, reducing the likelihood of needing to execute go-arounds or other last-minute adjustments.

While maintaining a speed below VREF is important for a safe landing, it is not the defining characteristic of a stabilized approach at this altitude. Similarly, descent rates should generally not exceed specified limits, and flying in level flight does not pertain to being stabilized for landing. Thus, the focus on being fully configured aligns directly with the fundamental principles of achieving a stabilized approach.