Rubuta ci gaba ga wannan sakin layi - Idan jirgin kasa ya ƙare kafin ya kai ga farfajiyar duniya, an kira shi "blind thrust" kuskure. Saboda rashin tabbacin surface, kuskuren makanta yana da wuya a gano har sai sun fashe. Girgizar ƙasa da ta halaka a shekara ta 1994 a Northridge, California
, ya faru ne ta hanyar kuskuren makanta da ba a gano ba.