BoeingAccording to two sources familiar with the matter, the U.S. planemaker is planning to ramp up production of its cash cow the narrowbody 737-family to approximately 47 units per month at the end of next fiscal year. This comes as it looks to expand its recovery from previous crises.

Boeing and Airbus have cut production in response to the pandemic. In recent weeks, both aircraft manufacturers added attractive deals to their orders books.

The people warned that Boeing’s production plans can change over time and be affected by many other factors. There are doubts in the industry about whether the supply chain can meet the demands of aggressive production ramp up plans. This is especially true in Europe. Due to the overlapping pandemic crisis and 737 Max safety grounding, many suppliers face labor and material shortages.

Boeing stated in January that it was clearing an inventory of 335 737 Max planes. This came after two deadly crashes which grounded the aircraft for over 20 months. According to Boeing, most of the jets were expected to be delivered by 2023.

Boeing refused to make any comments on production plans, referring instead to the last statements it made.

Brian West, the Chief Financial Officer of 737 Programs stated in January that 27 jets were being produced per month. He said that it was expected to increase to 31 each month “fairly quickly.”

Zwei of those polled believed that the 31-jet monthly stride will occur in the second half year. However, a third person suggested it could be sooner.

According to two sources, Boeing plans on increasing its production to 38 narrowbody planes each month during 2023 and to 47 in the 2023 second half, according to the company.

According to the third person, Boeing had laid the foundations to almost double the production by 2023. But, they also noted that plans can change because of supply chain constraints and other factors.

This is just five aircraft less than the build rate that was achieved in 2019 when the 737 Max went down.

Airbus has, however, set a target for production of 65 per month in its A320-family narrowbody by the summer 2023.

Safran, France’s engine maker, has argued with it over the company’s ambition to increase production by as much as 75 per month.