Boeing received a small vote of confidence in the troubled 737 Max after another airline said it was interested in buying the aircraft.
Air Astana, the flag carrier in Kazakhstan, announced at the Dubai Air Show that it wanted 30 737s for the recently launched budget company Fly Arystana.
But Air Astana has signed a "letter of intent" rather than a fixed order.
737 Max is grounded after two crashes, while regulators consider changes to the aircraft before clearing that aircraft.
There is speculation that Boeing and other airlines could also schedule another 737 announcements at the air show on Wednesday. On Monday, Turkey's SunExpress said it intended to exercise an option to buy 1[ads1]0,737.
- Boeing is accused of having built & # 39; flying chests & # 39;
In June, British Airways parents told IAG at the Paris Air Show that it wanted to buy the Max plane. But the order has not been strengthened.
Earlier this year, Boeing 737 Max deliveries stopped as new orders for their fast-selling aircraft dried out. The US manufacturer stumbles to get software update approval for its flight control system, identified as a key factor in two crashes that killed a total of 346 people.
Stan Deal, who took over last month as chief of Boes's commercial aircraft after the previous chief was removed, told a press conference Saturday that there was still no date for resuming 737 Max flights.
He said it was in the hands of aviation regulators, but added: "We are continuing to make progress."
The 737 Max crisis has cost Boeing tens of billions of dollars, and Deal said he would talk to airline executives at the trade show about the impact on operations. Affected airlines require compensation.