Which statement is true about the maximum flight hours within a 672 consecutive hour window?

• A. 100 hours
• B. 120 hours
• C. 80 hours
• D. 90 hours

Answer: (A)

A rolling 28-day period (672 hours) has a strict cap on how much flight time can be accumulated, set at 100 hours. This means in any consecutive 672-hour window, the total flight time cannot exceed 100 hours. The purpose is to limit fatigue over time by constraining how much flying can occur across roughly a month, no matter when the window starts. Among the options, 100 hours is the true maximum because it represents the regulatory cap; 120 hours would violate the limit in many windows, while 80 or 90 hours are below the maximum allowed, not the upper bound the rule enforces.