Qantas in global 787 Dreamliner fire unit check QANTAS has joined a global check of emergency beacons in up to 1200 planes in the wake of this month's fire in an Ethiopian Airlines Boeing 787 Dreamliner at London Heathrow. British investigators traced the fire to a problem in an emergency locator transmitter (ELT) built by Honeywell International and called for a global inspection of the units.