Boeing's $600-bn orders at risk as clients rethink 737 Max purchases

Boeing Co.’s $600 billion-plus order book for its 737 Max began shaking after several big customers threatened to reconsider their purchases in the wake of the Ethiopian Airlines crash, the second deadly accident involving the plane since October.

VietJet Aviation JSC, which doubled its order to about $25 billion only last month, said it will decide on its future plans once the cause of the tragedy has been found. Kenya Airways Plc is reviewing proposals to buy the Max and could switch to Airbus SE’s rival A320. Russia’s Utair Aviation PJSC is seeking guarantees before taking delivery of the first