Federal Aviation Administration, DOT

Section 121.517

Administrator as adequate to serve the
terminal points concerned.
[Doc. No. 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]

Section 121.505 Flight time limitations: Two
pilot crews: airplanes.
(a) If a certificate holder conducting
supplemental operations schedules a
pilot to fly more than eight hours during any 24 consecutive hours, it shall
give him an intervening rest period at
or before the end of eight scheduled
hours of flight duty. This rest period
must be at least twice the number of
hours flown since the preceding rest period, but not less than eight hours. The
certificate holder conducting supplemental operations shall relieve that
pilot of all duty with it during that
rest period.
(b) No pilot of an airplane that has a
crew of two pilots may be on duty for
more than 16 hours during any 24 consecutive hours.
[Doc. No. 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]

Section 121.507 Flight time limitations: Three
pilot crews: airplanes.
(a) No certificate holder conducting
supplemental operations may schedule
a pilot - 
(1) For flight deck duty in an airplane that has a crew of three pilots for
more than eight hours in any 24 consecutive hours; or
(2) To be aloft in an airplane that has
a crew of three pilot for more than 12
hours in any 24 consecutive hours.
(b) No pilot of an airplane that has a
crew of three pilots may be on duty for
more than 18 hours in any 24 consecutive hours.
[Doc. No. 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]

Section 121.509 Flight time limitations: Four
pilot crews: airplanes.
(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.
[Doc. No. 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]

Section 121.511 Flight
time
limitations:
Flight engineers: airplanes.
(a) In any operation in which one
flight engineer is serving the flight
time limitations in SectionSection 121.503 and 121.505
apply to that flight engineer.
(b) In any operation in which more
than one flight engineer is serving and
the flight crew contains more than two
pilots the flight time limitations in
Section 121.509 apply in place of those in
Section 121.505.
Section 121.513 Flight time limitations: Overseas and international operations:
airplanes.
In place of the flight time limitations in SectionSection 121.503 through 121.511, a certificate holder conducting supplemental operations may elect to comply
with the flight time limitations of
SectionSection 121.515 and 121.521 through 121.525 for
operations conducted - 
(a) Between a place in the 48 contiguous States and the District of Columbia, or Alaska, and any place outside
thereof;
(b) Between any two places outside
the 48 contiguous States, the District
of Columbia, and Alaska; or
(c) Between two places within the
State of Alaska or the State of Hawaii.
[Doc. No. 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]

Section 121.515 Flight time limitations: All
airmen: airplanes.
No airman may be aloft as a flight
crewmember more than 1,000 hours in
any 12-calendar-month period.
Section 121.517 Flight time limitations: Other
commercial flying: airplanes.
No airman who is employed by a certificate holder conducting supplemental operations may do any other
commercial flying, if that commercial

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