submission - Independent Pilots Association

emprncalr ascertarned. However. it is clea¡ that thcsc activitics would contribute to fatigue in the
form of trmc since a*,ake. consequenrly, ir ma¡ tr appropnate to limit rìese acriviries in eirher of
t\r o wa) s:
o \À'i¡h rcspccr to when they occur rclative ro flight ti¡nc so as ¡o avoid pilos achieving high
tirrt.since-awakelevelsduringflighttirrreperiods.
o hor.ide maximum levels for these acúvities comparable to duty Pcrid tinrc levels.
othcr duq pcrid activitics. Bec¿r¡sc hea¡t rate in r - r-r -
suggests öar proposals to limit landings for flighs rhat have other bown fatigr¡c faaon (c'g.,
tinre sincc awake, window of ci¡cadian low, cxtcndcd flight dury periods) may bc appropriue'
The rclarionship bctween task tyPc and fatiguc buildup in thc aviation domain rcmains to bc
derermined. The demands placei on rong-haul pi.ros are crearly differcnr from thosc of the
: lþrdri ve n airpl anc witb I'imitcd ar¡ to rnari oo.
lc lcg of si¡ or rmre hours. Thc mai¡ task'rclaæd
rritive fatiguc due to vigilancc. Thc rcgional pilot.
luc to the high wortload involvcd in pcrforming
six or morc takeoffs and tandings. For this rcåson. it may prove nectssafy to develop s€Paratc
regulations that a¡e appropriue for each major tlPe of ope ra¡ion'
DurY Period Extensions
The rese.¡-.'h cited on dury'PeriÑ duration sug-sesLs that duty pe nods at or above l2 houn a¡e
a:sociaæd *rth a higher nsi oierror Thrs factor. together *'ith the trmc-si¡cc-a'*aIe fa.-tor,
suggesrs rlar extend-ed duty pe nods also inrolre a higher poæntial for crew efror' In determrning
maximum hnuts for exrended duty penods. consrderation a.Ìso needs to be given to other fatiguerelated
facrors rhar could contnbure ro excessire fatigue levels during e¡ænded dur¡' pcriods.
includine number of legs. wherher the flight impinges on thc *indow of ci¡cadia¡ low (1\'OCL)'
and tirne srnce arl'ale,
Cumulative DutY Time
No data,¡ere found that provide guidance for maximum dury tirnes over longertime penods, such
as one month or one Ye¿u.
Literalure ReYiev'
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