after the departure of boeing boston is null and buried attention is turning to his successor david callahan he faces the uphill battle of restoring the aviation giants tarnished reputation cologne is known as a crisis manager having helped caterpillar and general electric overcome struggles in the past. out with the old. and in with the new this is david calhoun the man replacing boeing's recently ousted c.e.o. dennis mullen burge. the news is a major topic at u.s. airports the reaction to c.e.o. of boeing stepping down it's been a long time coming boeing has had some problems some months you know got to be ultimately responsible for what's going on with boeing and there's much to take responsibility for at boeing 2 fatal crashes of its 737 max aircraft killed 346 people the 1st in indonesia in october 28th and the 2nd in ethiopia last march that has left the company mired in a crisis its biggest selling model has been taken off the market the 737 max remains grounded while boeing deals with a raft of investigations and potentially damaging lawsuits from victims' families and customers and