Which of the following IS NOT procedurally correct during a takeoff?

Releasing the brakes and allowing the aircraft to roll forward is a critical step in the takeoff procedure, as it initiates the movement of the aircraft down the runway. Checking fuel levels before takeoff is a fundamental safety measure to ensure that there is sufficient fuel for the flight, thus preventing emergencies during the flight. Disengaging the nose wheel steering and rolling slightly forward allows for better control during taxi and takeoff phases.

Performing a final inspection of the cockpit, while crucial for pre-flight checks, is typically not conducted immediately before takeoff in the operational sequence. Instead, this activity is usually performed during pre-flight checks when the aircraft is still stationary. Therefore, the option that does not align with the correct procedural steps for a takeoff is the final cockpit inspection conducted right before initiating takeoff.