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Code · CFR · Title 14 — Aeronautics and Space · Part 121 — Operating Requirements: Domestic, Flag, and Supplemental Operations · § 121.509

§ 121.509. Flight time limitations: Four pilot crews: airplanes.

113 words·~1 min read·/us/cfr/t14/s§ 121.509·

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(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. [Docket 6258, 29 FR 19218, Dec. 31, 1964; 30 FR 3639, Mar. 19, 1965, as amended by Amdt. 121-253, 61 FR 2613, Jan. 26, 1996]
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§ 121.509
Flight time limitations: Four pilot crews: airplanes.
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