Final answer:
The crew breaks usually end around 30 minutes prior to arrival to allow time for preparations and last-minute tasks.
Step-by-step explanation:
The crew breaks usually end around 30 minutes prior to arrival. This is to ensure that the crew has enough time to prepare for landing and to address any last-minute tasks or issues. For example, if a flight is scheduled to arrive at 4:00 PM, the crew breaks would typically end around 3:30 PM.