GroundRules
14 CFR 121.509: Flight time limitations: Four pilot crews: airplanes.
Where this section sits in the code
- Title 14—Aeronautics and Space
- CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
- SUBCHAPTER G—AIR CARRIERS AND OPERATORS FOR COMPENSATION OR HIRE: CERTIFICATION AND OPERATIONS
- PART 121—OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS
- Subpart S—Flight Time Limitations: Supplemental Operations
(a) No certificate holder conducting supplemental operations may schedule a pilot—
(1) For flight deck duty in an airplane that has a crew of four pilots for more than eight hours in any 24 consecutive hours; or
(2) To be aloft in an airplane that has a crew of four pilots for more than 16 hours in any 24 consecutive hours.
(b) No pilot of an airplane that has a crew of four pilots may be on duty for more than 20 hours in any 24 consecutive hours.
Collected 2026-08-27T02:24:20Z. Source file · JSON