Final answer:
To change the FDP start time to an earlier time, crew scheduling must submit a formal request to the airline's management and get it approved.
Step-by-step explanation:
To change the Flight Duty Period (FDP) start time to an earlier time, crew scheduling must follow a specific process. First, they need to submit a formal request to the airline's management.
This request should include the reasons for the change and how it will benefit the crew and the airline. Once the request is approved by management, crew scheduling can notify the crew of the new FDP start time.