22
14 CFR Ch. I (1–1–24 Edition)
§ 117.5
Physiological night’s rest
means 10
hours of rest that encompasses the
hours of 0100 and 0700 at the flightcrew
member’s home base, unless the indi-
vidual has acclimated to a different
theater. If the flightcrew member has
acclimated to a different theater, the
rest must encompass the hours of 0100
and 0700 at the acclimated location.
Report time
means the time that the
certificate holder requires a flightcrew
member to report for an assignment.
Reserve availability period
means a
duty period during which a certificate
holder requires a flightcrew member on
short call reserve to be available to re-
ceive an assignment for a flight duty
period.
Reserve flightcrew member
means a
flightcrew member who a certificate
holder requires to be available to re-
ceive an assignment for duty.
Rest facility
means a bunk or seat ac-
commodation installed in an aircraft
that provides a flightcrew member
with a sleep opportunity.
(1)
Class 1 rest facility
means a bunk
or other surface that allows for a flat
sleeping position and is located sepa-
rate from both the flight deck and pas-
senger cabin in an area that is tem-
perature-controlled, allows the
flightcrew member to control light,
and provides isolation from noise and
disturbance.
(2)
Class 2 rest facility
means a seat in
an aircraft cabin that allows for a flat
or near flat sleeping position; is sepa-
rated from passengers by a minimum of
a curtain to provide darkness and some
sound mitigation; and is reasonably
free from disturbance by passengers or
flightcrew members.
(3)
Class 3 rest facility
means a seat in
an aircraft cabin or flight deck that re-
clines at least 40 degrees and provides
leg and foot support.
Rest period
means a continuous period
determined prospectively during which
the flightcrew member is free from all
restraint by the certificate holder, in-
cluding freedom from present responsi-
bility for work should the occasion
arise.
Scheduled
means to appoint, assign,
or designate for a fixed time.
Short-call reserve
means a period of
time in which a flightcrew member is
assigned to a reserve availability pe-
riod.
Split duty
means a flight duty period
that has a scheduled break in duty that
is less than a required rest period.
Suitable accommodation
means a tem-
perature-controlled facility with sound
mitigation and the ability to control
light that provides a flightcrew mem-
ber with the ability to sleep either in a
bed, bunk or in a chair that allows for
flat or near flat sleeping position. Suit-
able accommodation only applies to
ground facilities and does not apply to
aircraft onboard rest facilities.
Theater
means a geographical area in
which the distance between the
flightcrew member’s flight duty period
departure point and arrival point dif-
fers by no more than 60 degrees lon-
gitude.
Unforeseen operational circumstance
means an unplanned event of insuffi-
cient duration to allow for adjustments
to schedules, including unforecast
weather, equipment malfunction, or air
traffic delay that is not reasonably ex-
pected.
Window of circadian low
means a pe-
riod of maximum sleepiness that oc-
curs between 0200 and 0559 during a
physiological night.
[Doc. No. FAA–2009–1093, 77 FR 398, Jan. 4,
2012; Amdt. 117–1A, 77 FR 28764, May 16, 2012;
Amdt. 117–1, 78 FR 69288, Nov. 19, 2013]
§ 117.5 Fitness for duty.
(a) Each flightcrew member must re-
port for any flight duty period rested
and prepared to perform his or her as-
signed duties.
(b) No certificate holder may assign
and no flightcrew member may accept
assignment to a flight duty period if
the flightcrew member has reported for
a flight duty period too fatigued to
safely perform his or her assigned du-
ties.
(c) No certificate holder may permit
a flightcrew member to continue a
flight duty period if the flightcrew
member has reported him or herself too
fatigued to continue the assigned flight
duty period.
(d) As part of the dispatch or flight
release, as applicable, each flightcrew
member must affirmatively state he or
she is fit for duty prior to commencing
flight.