When is the cabin call aural flight deck buzzer inhibited?

The cabin call aural flight deck buzzer is inhibited during specific phases of flight to prevent unnecessary distractions and maintain focus on critical flight tasks. The correct answer relates to key altitudes and speeds during departure and landing.

During departure, from takeoff power to 1500 feet Radio Altitude (RA), the cabin call initiation is inhibited to ensure that pilots are not distracted while they are in the high workload phase of getting to the initial cruising altitude, when precise control and situational awareness are essential.

During landing, the inhibition continues from 800 feet RA until reaching 80 knots after landing. This phase is also crucial, as pilots are focused on safely slowing down the aircraft and managing deceleration on the runway. Avoiding distractions during this time enhances safety and operational efficiency.

Options that refer to different altitudes or speeds may not accurately reflect the aircraft's operational requirements or standard operating procedures. The specific parameters in the correct answer align with the typical industry practices used to ensure optimal focus for pilots during critical phases of flight.