What is the fine-grained topic of the following text: Renton, Wash.—Boeing Co. and Lear Siegler, Inc., plan to decide by Nov. 1 whether to initiate production of an onboard computer system that could reduce the fuel consumption of Boeing 727s and 737s by 2-5%. Only return the topic.
Boeing Co. and Lear Siegler's plan to produce onboard computer system for fuel efficiency