A flight must not be performed if the crew members and, as appropriate, all other operations personnel involved in its preparation and execution are not familiar with applicable laws, regulations and procedures, pertinent to the performance of their duties, prescribed for the areas to be traversed, the aerodromes planned to be used and the air navigation facilities relating thereto.
Níor cheart eitilt a dhéanamh mura mbeidh na comhaltaí foirne agus, más iomchuí, na pearsanra oibríochta eile uile atá bainteach le hullmhú na heitilte agus lena cur i bhfeidhm, eolach ar na dlíthe, ar na rialacháin agus ar na nósanna imeachta is infheidhme maidir le comhlíonadh a ndualgas agus atá forordaithe do na limistéir atá le trasnú, do na haeradróim a bhfuil sé i gceist feidhm a bhaint astu agus do na háiseanna aerloingseoireachta a bhaineann leo.