Design precautions must be taken to minimise the hazards to the aircraft and occupants from reasonably probable threats, including information security threats, both inside and external to the aircraft, including protecting against the possibility of a significant failure in, or disruption of, any non-installed equipment.
Ní mór réamhchúraimí maidir le dearadh a ghlacadh le guaiseacha a laghdú i leith an aerárthaigh agus na dtaistealaithe ó bhagairtí a bhfuil seans réasúnta ann go dtitfidh siad amach, bagairtí don tslándáil faisnéise san áireamh, laistigh agus lasmuigh den aerárthach araon, ar réamhchúraimí iad lena n-áirítear cosaint i gcoinne na féidearthachta go dtarlódh cliseadh suntasach i dtrealamh neamhshuiteáilte nó go ndéanfaí cur isteach air.