What is the maximum flight hours for Part 135 pilots in a 12-month period?

• A. 1200 hours
• B. 1400 hours
• C. 1500 hours
• D. 1600 hours

Answer: (B)

Pilots operating under Part 135 face a fatigue-management rule that places a cap on how many hours they can fly in a rolling 12‑month window. The limit is 1,400 flight hours in any 12 consecutive months. This rolling window means you look back 12 months from the current date and ensure the total hours flown in that period don’t exceed 1,400. It’s designed to balance the need for operational flexibility with safety, preventing long-term overexposure.

That’s why 1,400 hours is the maximum in a 12‑month period. The other numbers don’t fit the rule: 1,200 is below the cap and is not the maximum possible, while 1,500 and 1,600 hours would exceed the regulatory limit and aren’t allowed.