Even as production increases, some completed 787s are still awaiting delivery due to delays getting new passenger seat designs certified.

Boeing Co. late this year aims to begin preparations to hike output of its 737 family of jetliners to 47 aircraft per month, an earlier-than-expected move that would help put its finances on firmer footing.

Boeing is eyeing approvals for significantly higher production of the 737 MAX in 2025 after US authorities allowed increased output on the 787 plane, the company's CEO said Thursday.