Boeing was competing with the DC-9, which forced Boeing to look for ways to make its 737 more fuel efficient. Boeing selected the CFM International CFM56 engine for its 737s. But there were design ...

Boeing launched the second generation, or Classic series of 737s, from 1984 to 1990, including the 737-300, 400, and 500. Boeing replaced the P&W engines with the more fuel-efficient CFM56 engines.

Here's what engine and why they're so popular. ... the two companies had a working CFM56-2 engine, ... and the CFM56-7B, which is the exclusive turbofan for the Boeing 737 Next-Generation line.

Lion Air and its subsidiaries operate over 100 Boeing 737-800 and -900 ... These newly introduced capabilities offer operators the confidence and convenience of a second CFM56-7B engine ...

Thailand's Nok Airlines Public Company Limited Selects StandardAero For CFM56-7B Engine MRO Support, Renewing Long-Term Relationship. ... With a fleet of 14 Boeing 737-800 aircraft, ...

Lion Air and its subsidiaries operate over 100 Boeing 737-800 and -900 narrowbody aircraft powered by the CFM56-7B turbofan. This press release features multimedia.