It seems there is a lot of confusion from time to time regarding the restrictions placed on crew duty times. These restrictions are placed by the FAA; not the charter company. These regulations are FAR (Federal Aviation Regulations) Part 135 (which is the part that governs most charter flights). These particular regulations are from FAR Section 135.267.
2 Man Crew: 10 Hours on Flight Deck /10 Hours Flight Time / 14 Hours Duty Time
3 Man Crew: 8 Hours Flight Deck / 12 Hours Flight Time / 18 Hours Duty Time
4 Man Crew: 8 Hours Flight Deck / 16 Hours Flight Time / 20 Hours Duty Time
Additionally – 10 hours of consecutive rest during the 24-hour period that precedes the planned completion time of the assignment.
- Not more than 500 hours in any calendar quarter
- Not more than 800 hours in any two consecutive calendar quarters
- Not more than 1,400 hours in any calendar year
