 Nta ndege nimwe muri izo ebyiri ziherutse gukora impanuka - iya kompanyi Ethiopian Airlines yo muri Ethiopia niya kompanyi Lion Air yo muri Indonesia - yari ifite ubwo buryo bwo guhuruza, bufasha abapilote bubaburira igihe hari ukuvuguruzanya mu makuru atangwa nibyuma bigenzura urugendo rwindege. 