<prompt> tafadhali geuza maudhui haya ya swahili kwenda kwa kiingereza.kwa mujibu wa utafiti wa mwaka 1996,baraza la ulaya linaloshughulikia usalama wa usafiri wa angani linakadiria kuwa 90 ya ajali za ndege hutokana na hitilafu za kiufundi.  <response>: in a previous study, the european transport safety council estimated that 90 of aircraft accidents were survivable. 