Investigators in France on Friday examined the black boxes of a Boeing 737 Max that crashed in Ethiopia as a spooked global airline industry waited to see if the cause was similar to the disaster in Indonesia months before.

Ethiopian Airlines flight 302 crashed soon after take-off from Addis Ababa last weekend, killing all 157 people on board.

Also, in the second such calamity involving Boeing’s flagship new model after a jet came down off Indonesia in October with 189 people on board.

Regulators have grounded the 737 Max around the world, while the U.S. plane-maker has halted next deliveries of the several thousand planes on order for a model intended to be the future industry workhorse.

Parallels between the twin disasters have frightened passengers worldwide and wiped more than 26 billion dollars off Boeing’s share price.