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14 CFR Ch. I (1–1–19 Edition)

§ 117.5

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.

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.

§ 117.7

Fatigue risk management sys-

tem.

(a) No certificate holder may exceed

any provision of this part unless ap-
proved by the FAA under a Fatigue
Risk Management System that pro-
vides at least an equivalent level of
safety against fatigue-related acci-
dents or incidents as the other provi-
sions of this part.

(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.

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