FAR 135.267 Duty Time Requirements: Complete Breakdown | FlyAXS
A detailed guide to 14 CFR 135.267 flight time limitations and rest requirements for unscheduled (on-demand) Part 135 operations with one- and two-pilot crews. Understanding these limits is essential for charter operators to avoid certificate action and maintain crew safety.
Annual and Quarterly Flight Time Limits
FAR 135.267(a) establishes rolling time limits: 500 hours per calendar quarter, 800 hours per two consecutive quarters, and 1,400 hours per calendar year. These are flight time limits measured from when the aircraft first moves until it comes to rest after landing.
Daily Flight Time Limits
Within any 24 consecutive hours, single-pilot operations are limited to 8 hours of flight time; two-pilot crews are limited to 10 hours. All pilots must receive 10 consecutive hours of rest during the 24-hour period preceding any flight assignment.
Quarterly Rest Days
FAR 135.267(d) requires 13 complete days off — 24-hour rest periods free from all company duties — per calendar quarter. These rest days cannot be averaged or carried forward between quarters.
Extended Duty Period Rules
Flight time may exceed daily limits during a regularly assigned duty period not exceeding 14 hours, provided the duty period is immediately preceded and followed by at least 10 consecutive hours of rest. This provision is for scheduled operations, not routine on-demand use.
Compliance Tracking with FlyAXS
FlyAXS automatically tracks all FAR 135.267 limits across daily, quarterly, and annual intervals simultaneously, alerts schedulers before violations occur, and maintains audit-ready records for FAA inspections.