Section 117.5

14 CFR Ch. I (1-1-19 Edition)

Reserve flightcrew member means a
flightcrew member who a certificate
holder requires to be available to receive an assignment for duty.
Rest facility means a bunk or seat accommodation 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 separate from both the flight deck and passenger cabin in an area that is temperature-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 separated 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 reclines 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, including freedom from present responsibility 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 period.
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 temperature-controlled facility with sound
mitigation and the ability to control
light that provides a flightcrew member with the ability to sleep either in a
bed, bunk or in a chair that allows for
flat or near flat sleeping position. Suitable 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 longitude.
Unforeseen operational circumstance
means an unplanned event of insufficient duration to allow for adjustments
to schedules, including unforecast
weather, equipment malfunction, or air
traffic delay that is not reasonably expected.
Window of circadian low means a period of maximum sleepiness that occurs 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]

Section 117.5

Fitness for duty.

(a) Each flightcrew member must report for any flight duty period rested
and prepared to perform his or her assigned 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 duties.
(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.
Section 117.7 Fatigue risk management system.
(a) No certificate holder may exceed
any provision of this part unless approved by the FAA under a Fatigue
Risk Management System that provides at least an equivalent level of
safety against fatigue-related accidents or incidents as the other provisions of this part.
(b) The Fatigue Risk Management
System must include:
(1) A fatigue risk management policy.
(2) An education and awareness training program.
(3) A fatigue reporting system.

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