Boeing has said that it is delivering 38% fewer planes in the first seven months of 2019 when compared to the year prior.
Deliveries totalled 258 aircraft compared to 417 last year. The numbers mean that Boeing is trailing far behind the 458 aircraft handed over in the same period by its European rival Airbus.
It is now five straight months that the firm not gained any new orders for the grounded 737 Max.
Boeing is on course to fall behind Airbus as the world's biggest platemaker marking the first time in eight years this has happened.
Boeing's July orders totalled 31 commercial jets, comprising 10 widebody 777s and 21 Dreamliner 787s, while deliveries were 19 jets including 12 787s, two 777s and two earlier-generation 737s.
Last month, the company posted its largest-ever quarterly loss due to the grounding of 737 Max jets and associated costs.
There is still no firm word on when the aircraft will take to the skies again, although CEO Dennis Muilenberg believes it should be at some point before the end of 2019.