What is the callout report time for domicile with more than one airport?

The correct answer of 150 minutes is significant because it reflects the standard practice for ensuring that crew members have adequate time to prepare for their assignment, particularly when their domicile includes more than one airport. This extended callout period allows for logistical considerations such as travel time to the airport, potential delays, and any necessary pre-flight procedures.

In instances where crew members are based in a domicile with multiple airports, the complexity of commuting and the potential for variations in traffic or transportation options necessitate a longer callout time than might be required for a singular airport. This ensures that all crew members can report on time without unnecessary stress or complications, ultimately contributing to safer and more efficient operations.

The other time options, while plausible, do not align with the established protocol that reflects the additional challenges faced when multiple airports are involved in a crew's domicile assignment. Therefore, the choice of 150 minutes stands out as the optimal timeframe to support effective crew scheduling and operational reliability.