Due account must be taken of pilot strength, flight deck environment, pilot workload and other human-factor considerations and of the phase of flight and its duration;
Ní mór neart an phíolóta, timpeallacht na deice eitilte, ualach oibre an phíolóta agus dálaí eile a bhfuil gné dhaonna ag baint leo, chomh maith le céim na heitilte agus fad na heitilte, a chur san áireamh go hiomchuí;