What sequence is suggested for correcting altitude during flight?

The suggested sequence for correcting altitude during flight is to first adjust power, then modify the aircraft's attitude, and finally trim the aircraft for the new conditions. This process is effective because adjusting power directly affects the rate of climb or descent. By first manipulating the power setting, you establish a new performance profile for the aircraft.

Once the power is adjusted, changing the aircraft’s attitude—either by pitching up to climb or pitching down to descend—ensures that you are effectively managing the angle of attack and the aircraft's flight path. After making these adjustments, you then trim the aircraft to relieve any control pressures, allowing for a more stable flight and reducing pilot workload.

This sequence ensures that the aircraft responds effectively and efficiently to altitude changes. Adjusting trim before changing power can lead to unnecessary workload or ineffective altitude correction, as the initial change in power is what truly starts to alter the flight path. Therefore, the correct procedure enhances safety and reduces the risk of over-controlling.