(Reuters) -Boeing CFO Brian West said on Wednesday the company is concerned about how President Donald Trump's tariffs will affect the availability of parts from its suppliers, although he said the U.S. planemaker has a large enough inventory for now.

Key Takeaways Boeing shares jumped on Wednesday after the plane maker got a new order for 17 planes from Japan Airlines.Bank of America analysts also said Wednesday that they expect Boeing's deliveries to improve in March compared to February.

Boeing's cash burn is easing this quarter and its factories are improving, the aerospace giant's CFO Brian West's said.