Boeing announced Tuesday that deliveries and new orders for all of its 737 jets fell in the first quarter.

The plane maker has halted deliveries of the 737 Max, the latest model of the popular narrow-body jet, after faulty data feeding into the aircraft's automated flight system was implicated in two fatal crashes that killed all 346 people aboard the flights. Boeing announced Friday that it's cutting production by 20 percent as it tries to find a software fix to get the planes flying again. They've been grounded since the second crash in mid-March.