Crew Duty and Flight Time Limits (FAA Part 117)
Check a planned flight against 14 CFR Part 117 limits for two, three and four pilot crews, with rest facility class, flight segments and deadhead.
Reference only. This models the Part 117 tables for acclimated crews (a 30 minute reduction applies if not acclimated). It does not model extensions, split duty, reserve, cumulative limits or your operator's approved fatigue program. Always check the regulation and your operations manual.
Which crew complement works?
Rules used
- Flight time (§117.11, Table A): two pilots 8 or 9 hours by report time; 13 hours with three pilots; 17 hours with four pilots.
- Flight duty period: Table B for two pilots (by start time and segments), Table C for augmented crews (by start time, 3 or 4 pilots, and rest facility class). The longest possible is 19 hours.
- Augmented crews (§117.17): no more than three flight segments; in-flight rest of two consecutive hours in the second half of the FDP for the pilot flying the landing, and 90 minutes for the monitoring pilot.
- Rest (§117.25): at least 10 consecutive hours before a duty period, with 8 uninterrupted hours of sleep opportunity, and 30 consecutive hours free from duty in the past 168 hours.
- Deadhead: counts as duty, and before a flight it is part of the FDP, but it is not a flight segment for Table B. If deadhead exceeds the Table B FDP, rest equal to the deadhead length is required, and never less than 10 hours (§117.25(g)).
ICAO and EASA
ICAO Annex 6 requires each State to set flight and duty limits, or to approve a fatigue risk management system. It does not publish one numeric table, so there is no single ICAO calculator. EASA limits (ORO.FTL) are different from Part 117 and are not in this tool yet. Source for the FAA figures: 14 CFR Part 117 and Tables A to C, as published in the eCFR, checked October 2026.