195 

Federal Aviation Administration, DOT 

§ 121.533 

§ 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 
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 

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