209
Federal Aviation Administration, DOT
§ 121.525
holder. In any case, he must be relieved
of all duty for at least 24 consecutive
hours during any seven consecutive
days.
(c) No airman may be aloft as a flight
crewmember more than—
(1) 120 hours during any 30 consecu-
tive days; or
(2) 300 hours during any 90 consecu-
tive days.
[Doc. No. 6258, 29 FR 19218, Dec. 31, 1964, as
amended by Amdt. 121–17, 31 FR 1147, Jan. 28,
1966; Amdt. 121–253, 61 FR 2613, Jan. 26, 1996]
§ 121.523 Flight time limitations: Crew
of three or more pilots and addi-
tional airmen as required.
(a) No certificate holder conducting
supplemental operations may schedule
an airman for flight deck duty as a
flight engineer, or navigator in a crew
of three or more pilots and additional
airmen for a total of more than 12
hours during any 24 consecutive hours.
(b) Each certificate holder con-
ducting supplemental operations shall
schedule its flight hours to provide
adequate rest periods on the ground for
each airman who is away from his prin-
cipal operations base. It shall also pro-
vide adequate sleeping quarters on the
airplane whenever an airman is sched-
uled to be aloft as a flight crewmember
for more than 12 hours during any 24
consecutive hours.
(c) No certificate holder conducting
supplemental operations may schedule
any flight crewmember to be on contin-
uous duty for more than 30 hours. Such
a crewmember is considered to be on
continuous duty from the time he re-
ports for duty until the time he is re-
leased from duty for a rest period of at
least 10 hours on the ground. If a flight
crewmember is on continuous duty for
more than 24 hours (whether scheduled
or not) during any scheduled duty pe-
riod, he must be given at least 16 hours
for rest on the ground after completing
the last flight scheduled for that sched-
uled duty period before being assigned
any further flight duty.
(d) If a flight crewmember is required
to engage in deadhead transportation
for more than four hours before begin-
ning flight duty, one half of the time
spent in deadhead transportation must
be treated as duty time for the purpose
of complying with duty time limita-
tions, unless he is given at least 10
hours of rest on the ground before
being assigned to flight duty.
(e) Each certificate holder con-
ducting supplemental operations shall
give each airman, upon return to his
operations base from any flight or se-
ries of flights, a rest period that is at
least twice the total number of hours
he was aloft as a flight crewmember
since the last rest period at his base,
before assigning him to any further
duty. If the required rest period is
more than seven days, that part of the
rest period that is more than seven
days may be given at any time before
the pilot is again scheduled for flight
duty.
(f) No airman may be aloft as a flight
crewmember for more than 350 hours in
any 90 consecutive days.
[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; Amdt. 121–
387, 87 FR 75846, Dec. 9, 2022]
§ 121.525 Flight time limitations: Pilots
serving in more than one kind of
flight crew.
(a) This section applies to each pilot
assigned during any 30 consecutive
days to more than one type of flight
crew.
(b) The flight time limitations for a
pilot who is scheduled for duty aloft for
more than 20 hours in two-pilot crews
in 30 consecutive days, or whose assign-
ment in such a crew is interrupted
more than once in any 30 consecutive
days by assignment to a crew of two or
more pilots and an additional flight
crewmember, are those listed in
§§ 121.503 through 121.509, as appro-
priate.
(c) Except for a pilot covered by para-
graph (b) of this section, the flight
time limitations for a pilot scheduled
for duty aloft for more than 20 hours in
two-pilot and additional flight crew-
member crews in 30 consecutive days or
whose assignment in such a crew is in-
terrupted more than once in any 30
consecutive days by assignment to a
crew consisting of three pilots and an
additional flight crewmember, are
those set forth in § 121.521.
(d) The flight time limitations for a
pilot to whom paragraphs (b) and (c) of
this section do not apply, and who is
210
14 CFR Ch. I (1–1–24 Edition)
§ 121.527
scheduled for duty aloft for a total of
not more than 20 hours within 30 con-
secutive days in two-pilot crews (with
or without additional flight crew-
members) are those set forth in
§ 121.523.
(e) The flight time limitations for a
pilot assigned to each of two-pilot,
two-pilot and additional flight crew-
member, and three-pilot and additional
flight crewmember crews in 30 consecu-
tive days, and who is not subject to
paragraph (b), (c), or (d) of this section,
are those listed in § 121.523.
§ 121.527 Fatigue risk management
system.
(a) No certificate holder may exceed
any provision of this subpart unless ap-
proved by the FAA under a Fatigue
Risk Management System.
(b) The Fatigue Risk Management
System must include:
(1) A fatigue risk management pol-
icy.
(2) An education and awareness train-
ing program.
(3) A fatigue reporting system.
(4) A system for monitoring
flightcrew fatigue.
(5) An incident reporting process.
(6) A performance evaluation.
[Doc. No. FAA–2009–1093, 77 FR 403, Jan. 4,
2012]
Subpart T—Flight Operations
S
OURCE
: Docket No. 6258, 29 FR 19219, Dec.
31, 1964, unless otherwise noted.
§ 121.531 Applicability.
This subpart prescribes requirements
for flight operations applicable to all
certificate holders, except where other-
wise specified.
§ 121.533 Responsibility for oper-
ational control: Domestic oper-
ations.
(a) Each certificate holder con-
ducting domestic operations is respon-
sible for operational control.
(b) The pilot in command and the air-
craft dispatcher are jointly responsible
for the preflight planning, delay, and
dispatch release of a flight in compli-
ance with this chapter and operations
specifications.
(c) The aircraft dispatcher is respon-
sible for—
(1) Monitoring the progress of each
flight;
(2) Issuing necessary information for
the safety of the flight; and
(3) Cancelling or redispatching a
flight if, in his opinion or the opinion
of the pilot in command, the flight can-
not operate or continue to operate
safely as planned or released.
(d) Each pilot in command of an air-
craft is, during flight time, in com-
mand of the aircraft and crew and is re-
sponsible for the safety of the pas-
sengers, crewmembers, cargo, and air-
plane.
(e) Each pilot in command has full
control and authority in the operation
of the aircraft, without limitation,
over other crewmembers and their du-
ties during flight time, whether or not
he holds valid certificates authorizing
him to perform the duties of those
crewmembers.
[Doc. No. 6258, 29 FR 19219, Dec. 31, 1964, as
amended by Amdt. 121–253, 61 FR 2613, Jan.
26, 1996]
§ 121.535 Responsibility for oper-
ational control: Flag operations.
(a) Each certificate holder con-
ducting flag operations is responsible
for operational control.
(b) The pilot in command and the air-
craft dispatcher are jointly responsible
for the preflight planning, delay, and
dispatch release of a flight in compli-
ance with this chapter and operations
specifications.
(c) The aircraft dispatcher is respon-
sible for—
(1) Monitoring the progress of each
flight;
(2) Issuing necessary instructions and
information for the safety of the flight;
and
(3) Cancelling or redispatching a
flight if, in his opinion or the opinion
of the pilot in command, the flight can-
not operate or continue to operate
safely as planned or released.
(d) Each pilot in command of an air-
craft is, during flight time, in com-
mand of the aircraft and crew and is re-
sponsible for the safety of the pas-
sengers, crewmembers, cargo, and air-
plane.