What is the maximum flight duty block time allowed in 28 days for flight crew?

The maximum flight duty block time allowed for flight crew in 28 days is 100 hours. This limit is set to ensure that crews do not exceed safe working limits and are rested adequately to perform their duties effectively.

This regulation is essential because it helps prevent fatigue, which can significantly impact operational safety. These limits are typically established by aviation regulatory authorities to maintain high safety standards in the aviation industry.

Understanding this time limit is crucial for flight crews, as exceeding it could not only violate regulatory requirements but also pose risks to the safety of the flight operations.