What is the maximum allowed flight duty period (FDP) without any extension?

The maximum allowed flight duty period (FDP) without any extension is 14 hours. This duration adheres to regulations aimed at ensuring pilot safety and operational efficiency. The FDP is defined as the total time from the moment a pilot is required to report for duty until the moment they are free from duty after completing the flight.

Factors influencing this restriction include the time of day flights are conducted, the number of flight segments, and cumulative duty time. These elements are crucial for ensuring pilots are well-rested and capable of operating the aircraft safely.

The choice of 12 hours does not reflect the current regulations for un-extended flight duty periods and is shorter than the established maximum. While pilots can manage shorter periods effectively, operational guidelines aim to balance safety with operational flexibility by permitting longer duty periods under specific circumstances, such as with appropriate rest requirements.