24 

14 CFR Ch. I (1–1–24 Edition) 

§ 117.15 

(2) The applicable flight duty period 

is based on the local time at the the-
ater in which the flightcrew member 
was last acclimated. 

§ 117.15 Flight duty period: Split duty. 

For an unaugmented operation only, 

if a flightcrew member is provided with 
a rest opportunity (an opportunity to 
sleep) in a suitable accommodation 
during his or her flight duty period, the 
time that the flightcrew member 
spends in the suitable accommodation 
is not part of that flightcrew member’s 
flight duty period if all of the following 
conditions are met: 

(a) The rest opportunity is provided 

between the hours of 22:00 and 05:00 
local time. 

(b) The time spent in the suitable ac-

commodation is at least 3 hours, meas-
ured from the time that the flightcrew 
member reaches the suitable accommo-
dation. 

(c) The rest opportunity is scheduled 

before the beginning of the flight duty 
period in which that rest opportunity 
is taken. 

(d) The rest opportunity that the 

flightcrew member is actually provided 
may not be less than the rest oppor-
tunity that was scheduled. 

(e) The rest opportunity is not pro-

vided until the first segment of the 
flight duty period has been completed. 

(f) The combined time of the flight 

duty period and the rest opportunity 
provided in this section does not exceed 
14 hours. 

§ 117.17 Flight duty period: Augmented 

flightcrew. 

(a) For flight operations conducted 

with an acclimated augmented 
flightcrew, no certificate holder may 
assign and no flightcrew member may 
accept an assignment if the scheduled 
flight duty period will exceed the lim-
its specified in Table C of this part. 

(b) If the flightcrew member is not 

acclimated: 

(1) The maximum flight duty period 

in Table C of this part is reduced by 30 
minutes. 

(2) The applicable flight duty period 

is based on the local time at the the-
ater in which the flightcrew member 
was last acclimated. 

(c) No certificate holder may assign 

and no flightcrew member may accept 
an assignment under this section un-
less during the flight duty period: 

(1) Two consecutive hours in the sec-

ond half of the flight duty period are 
available for in-flight rest for the pilot 
flying the aircraft during landing. 

(2) Ninety consecutive minutes are 

available for in-flight rest for the pilot 
performing monitoring duties during 
landing. 

(d) No certificate holder may assign 

and no flightcrew member may accept 
an assignment involving more than 
three flight segments under this sec-
tion. 

(e) At all times during flight, at least 

one flightcrew member qualified in ac-
cordance with § 121.543(b)(3)(i) of this 
chapter must be at the flight controls. 

§ 117.19 Flight duty period extensions. 

(a) For augmented and unaugmented 

operations, if unforeseen operational 
circumstances arise prior to takeoff: 

(1) The pilot in command and the cer-

tificate holder may extend the max-
imum flight duty period permitted in 
Tables B or C of this part up to 2 hours. 
The pilot in command and the certifi-
cate holder may also extend the max-
imum combined flight duty period and 
reserve availability period limits speci-
fied in § 117.21(c)(3) and (4) of this part 
up to 2 hours. 

(2) An extension in the flight duty pe-

riod under paragraph (a)(1) of this sec-
tion of more than 30 minutes may 
occur only once prior to receiving a 
rest period described in § 117.25(b). 

(3) A flight duty period cannot be ex-

tended under paragraph (a)(1) of this 
section if it causes a flightcrew mem-
ber to exceed the cumulative flight 
duty period limits specified in 117.23(c). 

(4) Each certificate holder must re-

port to the Administrator within 10 
days any flight duty period that ex-
ceeded the maximum flight duty period 
permitted in Tables B or C of this part 
by more than 30 minutes. The report 
must contain the following: 

(i) A description of the extended 

flight duty period and the cir-
cumstances surrounding the need for 
the extension; and